Package java.nio

Class ByteBuffer

java.lang.Object
java.nio.Buffer
java.nio.ByteBuffer
All Implemented Interfaces:
Comparable<ByteBuffer>
Direct Known Subclasses:
MappedByteBuffer
public abstract class ByteBuffer
extends Buffer
implements Comparable<ByteBuffer>
A buffer for bytes.

A byte buffer can be created in either one of the following ways:

  • Allocate a new byte array and create a buffer based on it;
  • Allocate a memory block and create a direct buffer based on it;
  • Wrap an existing byte array to create a new buffer.

  • Method Summary

    Modifier and Type Method Description
    static ByteBuffer allocate​(int capacity)
    Creates a byte buffer based on a newly allocated byte array.
    static ByteBuffer allocateDirect​(int capacity)
    Creates a direct byte buffer based on a newly allocated memory block.
    byte[] array()
    Returns the byte array which this buffer is based on, if there is one.
    int arrayOffset()
    Returns the offset of the byte array which this buffer is based on, if there is one.
    abstract CharBuffer asCharBuffer()
    Returns a char buffer which is based on the remaining content of this byte buffer.
    abstract DoubleBuffer asDoubleBuffer()
    Returns a double buffer which is based on the remaining content of this byte buffer.
    abstract FloatBuffer asFloatBuffer()
    Returns a float buffer which is based on the remaining content of this byte buffer.
    abstract IntBuffer asIntBuffer()
    Returns a int buffer which is based on the remaining content of this byte buffer.
    abstract LongBuffer asLongBuffer()
    Returns a long buffer which is based on the remaining content of this byte buffer.
    abstract ByteBuffer asReadOnlyBuffer()
    Returns a read-only buffer that shares its content with this buffer.
    abstract ShortBuffer asShortBuffer()
    Returns a short buffer which is based on the remaining content of this byte buffer.
    abstract ByteBuffer compact()
    Compacts this byte buffer.
    int compareTo​(ByteBuffer otherBuffer)
    Compares the remaining bytes of this buffer to another byte buffer's remaining bytes.
    abstract ByteBuffer duplicate()
    Returns a duplicated buffer that shares its content with this buffer.
    boolean equals​(Object other)
    Checks whether this byte buffer is equal to another object.
    abstract byte get()
    Returns the byte at the current position and increases the position by 1.
    ByteBuffer get​(byte[] dst)
    Reads bytes from the current position into the specified byte array and increases the position by the number of bytes read.
    ByteBuffer get​(byte[] dst, int dstOffset, int byteCount)
    Reads bytes from the current position into the specified byte array, starting at the specified offset, and increases the position by the number of bytes read.
    abstract byte get​(int index)
    Returns the byte at the specified index and does not change the position.
    abstract char getChar()
    Returns the char at the current position and increases the position by 2.
    abstract char getChar​(int index)
    Returns the char at the specified index.
    abstract double getDouble()
    Returns the double at the current position and increases the position by 8.
    abstract double getDouble​(int index)
    Returns the double at the specified index.
    abstract float getFloat()
    Returns the float at the current position and increases the position by 4.
    abstract float getFloat​(int index)
    Returns the float at the specified index.
    abstract int getInt()
    Returns the int at the current position and increases the position by 4.
    abstract int getInt​(int index)
    Returns the int at the specified index.
    abstract long getLong()
    Returns the long at the current position and increases the position by 8.
    abstract long getLong​(int index)
    Returns the long at the specified index.
    abstract short getShort()
    Returns the short at the current position and increases the position by 2.
    abstract short getShort​(int index)
    Returns the short at the specified index.
    boolean hasArray()
    Returns true if array and arrayOffset won't throw.
    int hashCode()
    Calculates this buffer's hash code from the remaining chars.
    abstract boolean isDirect()
    Indicates whether this buffer is direct.
    ByteOrder order()
    Returns the byte order used by this buffer when converting bytes from/to other primitive types.
    ByteBuffer order​(ByteOrder byteOrder)
    Sets the byte order of this buffer.
    abstract ByteBuffer put​(byte b)
    Writes the given byte to the current position and increases the position by 1.
    ByteBuffer put​(byte[] src)
    Writes bytes in the given byte array to the current position and increases the position by the number of bytes written.
    ByteBuffer put​(byte[] src, int srcOffset, int byteCount)
    Writes bytes in the given byte array, starting from the specified offset, to the current position and increases the position by the number of bytes written.
    abstract ByteBuffer put​(int index, byte b)
    Write a byte to the specified index of this buffer without changing the position.
    ByteBuffer put​(ByteBuffer src)
    Writes all the remaining bytes of the src byte buffer to this buffer's current position, and increases both buffers' position by the number of bytes copied.
    abstract ByteBuffer putChar​(char value)
    Writes the given char to the current position and increases the position by 2.
    abstract ByteBuffer putChar​(int index, char value)
    Writes the given char to the specified index of this buffer.
    abstract ByteBuffer putDouble​(double value)
    Writes the given double to the current position and increases the position by 8.
    abstract ByteBuffer putDouble​(int index, double value)
    Writes the given double to the specified index of this buffer.
    abstract ByteBuffer putFloat​(float value)
    Writes the given float to the current position and increases the position by 4.
    abstract ByteBuffer putFloat​(int index, float value)
    Writes the given float to the specified index of this buffer.
    abstract ByteBuffer putInt​(int value)
    Writes the given int to the current position and increases the position by 4.
    abstract ByteBuffer putInt​(int index, int value)
    Writes the given int to the specified index of this buffer.
    abstract ByteBuffer putLong​(int index, long value)
    Writes the given long to the specified index of this buffer.
    abstract ByteBuffer putLong​(long value)
    Writes the given long to the current position and increases the position by 8.
    abstract ByteBuffer putShort​(int index, short value)
    Writes the given short to the specified index of this buffer.
    abstract ByteBuffer putShort​(short value)
    Writes the given short to the current position and increases the position by 2.
    abstract ByteBuffer slice()
    Returns a sliced buffer that shares its content with this buffer.
    static ByteBuffer wrap​(byte[] array)
    Creates a new byte buffer by wrapping the given byte array.
    static ByteBuffer wrap​(byte[] array, int start, int byteCount)
    Creates a new byte buffer by wrapping the given byte array.

    Methods inherited from class java.nio.Buffer

    capacity, clear, flip, hasRemaining, isReadOnly, limit, limit, mark, position, position, remaining, reset, rewind, toString

    Methods inherited from class java.lang.Object

    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

  • Method Details

    • allocate

      public static ByteBuffer allocate​(int capacity)
      Creates a byte buffer based on a newly allocated byte array.
      Parameters:
      capacity - the capacity of the new buffer
      Returns:
      the created byte buffer.
      Throws:
      IllegalArgumentException - if capacity < 0.

    • allocateDirect

      public static ByteBuffer allocateDirect​(int capacity)
      Creates a direct byte buffer based on a newly allocated memory block.
      Parameters:
      capacity - the capacity of the new buffer
      Returns:
      the created byte buffer.
      Throws:
      IllegalArgumentException - if capacity < 0.

    • wrap

      public static ByteBuffer wrap​(byte[] array)
      Creates a new byte buffer by wrapping the given byte array.

      Calling this method has the same effect as wrap(array, 0, array.length).

      Parameters:
      array - the byte array which the new buffer will be based on
      Returns:
      the created byte buffer.

    • wrap

      public static ByteBuffer wrap​(byte[] array, int start, int byteCount)
      Creates a new byte buffer by wrapping the given byte array.

      The new buffer's position will be start, limit will be start + byteCount, capacity will be the length of the array.

      Parameters:
      array - the byte array which the new buffer will be based on.
      start - the start index, must not be negative and not greater than array.length.
      byteCount - the length, must not be negative and not greater than array.length - start.
      Returns:
      the created byte buffer.
      Throws:
      IndexOutOfBoundsException - if either start or byteCount is invalid.

    • array

      public final byte[] array()
      Returns the byte array which this buffer is based on, if there is one.
      Specified by:
      array in class Buffer
      Returns:
      the byte array which this buffer is based on.
      Throws:
      ReadOnlyBufferException - if this buffer is based on a read-only array.
      UnsupportedOperationException - if this buffer is not based on an array.

    • arrayOffset

      public final int arrayOffset()
      Returns the offset of the byte array which this buffer is based on, if there is one.

      The offset is the index of the array which corresponds to the zero position of the buffer.

      Specified by:
      arrayOffset in class Buffer
      Returns:
      the offset of the byte array which this buffer is based on.
      Throws:
      ReadOnlyBufferException - if this buffer is based on a read-only array.
      UnsupportedOperationException - if this buffer is not based on an array.

    • asCharBuffer

      public abstract CharBuffer asCharBuffer()
      Returns a char buffer which is based on the remaining content of this byte buffer.

      The new buffer's position is zero, its limit and capacity is the number of remaining bytes divided by two, and its mark is not set. The new buffer's read-only property and byte order are the same as this buffer's. The new buffer is direct if this byte buffer is direct.

      The new buffer shares its content with this buffer, which means either buffer's change of content will be visible to the other. The two buffers' position, limit and mark are independent.

    • asDoubleBuffer

      public abstract DoubleBuffer asDoubleBuffer()
      Returns a double buffer which is based on the remaining content of this byte buffer.

      The new buffer's position is zero, its limit and capacity is the number of remaining bytes divided by eight, and its mark is not set. The new buffer's read-only property and byte order are the same as this buffer's. The new buffer is direct if this byte buffer is direct.

      The new buffer shares its content with this buffer, which means either buffer's change of content will be visible to the other. The two buffers' position, limit and mark are independent.

    • asFloatBuffer

      public abstract FloatBuffer asFloatBuffer()
      Returns a float buffer which is based on the remaining content of this byte buffer.

      The new buffer's position is zero, its limit and capacity is the number of remaining bytes divided by four, and its mark is not set. The new buffer's read-only property and byte order are the same as this buffer's. The new buffer is direct if this byte buffer is direct.

      The new buffer shares its content with this buffer, which means either buffer's change of content will be visible to the other. The two buffers' position, limit and mark are independent.

    • asIntBuffer

      public abstract IntBuffer asIntBuffer()
      Returns a int buffer which is based on the remaining content of this byte buffer.

      The new buffer's position is zero, its limit and capacity is the number of remaining bytes divided by four, and its mark is not set. The new buffer's read-only property and byte order are the same as this buffer's. The new buffer is direct if this byte buffer is direct.

      The new buffer shares its content with this buffer, which means either buffer's change of content will be visible to the other. The two buffers' position, limit and mark are independent.

    • asLongBuffer

      public abstract LongBuffer asLongBuffer()
      Returns a long buffer which is based on the remaining content of this byte buffer.

      The new buffer's position is zero, its limit and capacity is the number of remaining bytes divided by eight, and its mark is not set. The new buffer's read-only property and byte order are the same as this buffer's. The new buffer is direct if this byte buffer is direct.

      The new buffer shares its content with this buffer, which means either buffer's change of content will be visible to the other. The two buffers' position, limit and mark are independent.

    • asReadOnlyBuffer

      public abstract ByteBuffer asReadOnlyBuffer()
      Returns a read-only buffer that shares its content with this buffer.

      The returned buffer is guaranteed to be a new instance, even if this buffer is read-only itself. The new buffer's position, limit, capacity and mark are the same as this buffer.

      The new buffer shares its content with this buffer, which means this buffer's change of content will be visible to the new buffer. The two buffer's position, limit and mark are independent.

      Returns:
      a read-only version of this buffer.

    • asShortBuffer

      public abstract ShortBuffer asShortBuffer()
      Returns a short buffer which is based on the remaining content of this byte buffer.

      The new buffer's position is zero, its limit and capacity is the number of remaining bytes divided by two, and its mark is not set. The new buffer's read-only property and byte order are the same as this buffer's. The new buffer is direct if this byte buffer is direct.

      The new buffer shares its content with this buffer, which means either buffer's change of content will be visible to the other. The two buffers' position, limit and mark are independent.

    • compact

      public abstract ByteBuffer compact()
      Compacts this byte buffer.

      The remaining bytes will be moved to the head of the buffer, starting from position zero. Then the position is set to remaining(); the limit is set to capacity; the mark is cleared.

      Returns:
      this
      Throws:
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • compareTo

      public int compareTo​(ByteBuffer otherBuffer)
      Compares the remaining bytes of this buffer to another byte buffer's remaining bytes.
      Specified by:
      compareTo in interface Comparable<ByteBuffer>
      Parameters:
      otherBuffer - another byte buffer.
      Returns:
      a negative value if this is less than other; 0 if this equals to other; a positive value if this is greater than other.
      Throws:
      ClassCastException - if other is not a byte buffer.

    • duplicate

      public abstract ByteBuffer duplicate()
      Returns a duplicated buffer that shares its content with this buffer.

      The duplicated buffer's position, limit, capacity and mark are the same as this buffer's. The duplicated buffer's read-only property is the same as this buffer's.

      Note that in contrast to all non-byte buffers, byte order is not preserved in the duplicate, and is instead set to big-endian.

      The new buffer shares its content with this buffer, which means either buffer's change of content will be visible to the other. The two buffers' position, limit and mark are independent.

    • equals

      public boolean equals​(Object other)
      Checks whether this byte buffer is equal to another object.

      If other is not a byte buffer then false is returned. Two byte buffers are equal if and only if their remaining bytes are exactly the same. Position, limit, capacity and mark are not considered.

      Overrides:
      equals in class Object
      Parameters:
      other - the object to compare with this byte buffer.
      Returns:
      true if this byte buffer is equal to other, false otherwise.
      See Also:
      Object.hashCode()

    • get

      public abstract byte get()
      Returns the byte at the current position and increases the position by 1.
      Returns:
      the byte at the current position.
      Throws:
      BufferUnderflowException - if the position is equal or greater than limit.

    • get

      public ByteBuffer get​(byte[] dst)
      Reads bytes from the current position into the specified byte array and increases the position by the number of bytes read.

      Calling this method has the same effect as get(dst, 0, dst.length).

      Parameters:
      dst - the destination byte array.
      Returns:
      this
      Throws:
      BufferUnderflowException - if dst.length is greater than remaining().

    • get

      public ByteBuffer get​(byte[] dst, int dstOffset, int byteCount)
      Reads bytes from the current position into the specified byte array, starting at the specified offset, and increases the position by the number of bytes read.
      Parameters:
      dst - the target byte array.
      dstOffset - the offset of the byte array, must not be negative and not greater than dst.length.
      byteCount - the number of bytes to read, must not be negative and not greater than dst.length - dstOffset
      Returns:
      this
      Throws:
      IndexOutOfBoundsException - if dstOffset < 0 || byteCount < 0
      BufferUnderflowException - if byteCount > remaining()

    • get

      public abstract byte get​(int index)
      Returns the byte at the specified index and does not change the position.
      Parameters:
      index - the index, must not be negative and less than limit.
      Returns:
      the byte at the specified index.
      Throws:
      IndexOutOfBoundsException - if index is invalid.

    • getChar

      public abstract char getChar()
      Returns the char at the current position and increases the position by 2.

      The 2 bytes starting at the current position are composed into a char according to the current byte order and returned.

      Returns:
      the char at the current position.
      Throws:
      BufferUnderflowException - if the position is greater than limit - 2.

    • getChar

      public abstract char getChar​(int index)
      Returns the char at the specified index.

      The 2 bytes starting from the specified index are composed into a char according to the current byte order and returned. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 2.
      Returns:
      the char at the specified index.
      Throws:
      IndexOutOfBoundsException - if index is invalid.

    • getDouble

      public abstract double getDouble()
      Returns the double at the current position and increases the position by 8.

      The 8 bytes starting from the current position are composed into a double according to the current byte order and returned.

      Returns:
      the double at the current position.
      Throws:
      BufferUnderflowException - if the position is greater than limit - 8.

    • getDouble

      public abstract double getDouble​(int index)
      Returns the double at the specified index.

      The 8 bytes starting at the specified index are composed into a double according to the current byte order and returned. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 8.
      Returns:
      the double at the specified index.
      Throws:
      IndexOutOfBoundsException - if index is invalid.

    • getFloat

      public abstract float getFloat()
      Returns the float at the current position and increases the position by 4.

      The 4 bytes starting at the current position are composed into a float according to the current byte order and returned.

      Returns:
      the float at the current position.
      Throws:
      BufferUnderflowException - if the position is greater than limit - 4.

    • getFloat

      public abstract float getFloat​(int index)
      Returns the float at the specified index.

      The 4 bytes starting at the specified index are composed into a float according to the current byte order and returned. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 4.
      Returns:
      the float at the specified index.
      Throws:
      IndexOutOfBoundsException - if index is invalid.

    • getInt

      public abstract int getInt()
      Returns the int at the current position and increases the position by 4.

      The 4 bytes starting at the current position are composed into a int according to the current byte order and returned.

      Returns:
      the int at the current position.
      Throws:
      BufferUnderflowException - if the position is greater than limit - 4.

    • getInt

      public abstract int getInt​(int index)
      Returns the int at the specified index.

      The 4 bytes starting at the specified index are composed into a int according to the current byte order and returned. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 4.
      Returns:
      the int at the specified index.
      Throws:
      IndexOutOfBoundsException - if index is invalid.

    • getLong

      public abstract long getLong()
      Returns the long at the current position and increases the position by 8.

      The 8 bytes starting at the current position are composed into a long according to the current byte order and returned.

      Returns:
      the long at the current position.
      Throws:
      BufferUnderflowException - if the position is greater than limit - 8.

    • getLong

      public abstract long getLong​(int index)
      Returns the long at the specified index.

      The 8 bytes starting at the specified index are composed into a long according to the current byte order and returned. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 8.
      Returns:
      the long at the specified index.
      Throws:
      IndexOutOfBoundsException - if index is invalid.

    • getShort

      public abstract short getShort()
      Returns the short at the current position and increases the position by 2.

      The 2 bytes starting at the current position are composed into a short according to the current byte order and returned.

      Returns:
      the short at the current position.
      Throws:
      BufferUnderflowException - if the position is greater than limit - 2.

    • getShort

      public abstract short getShort​(int index)
      Returns the short at the specified index.

      The 2 bytes starting at the specified index are composed into a short according to the current byte order and returned. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 2.
      Returns:
      the short at the specified index.
      Throws:
      IndexOutOfBoundsException - if index is invalid.

    • hasArray

      public final boolean hasArray()
      Description copied from class: Buffer
      Returns true if array and arrayOffset won't throw. This method does not return true for buffers not backed by arrays because the other methods would throw UnsupportedOperationException, nor does it return true for buffers backed by read-only arrays, because the other methods would throw ReadOnlyBufferException.
      Specified by:
      hasArray in class Buffer

    • hashCode

      public int hashCode()
      Calculates this buffer's hash code from the remaining chars. The position, limit, capacity and mark don't affect the hash code.
      Overrides:
      hashCode in class Object
      Returns:
      the hash code calculated from the remaining bytes.
      See Also:
      Object.equals(java.lang.Object)

    • isDirect

      public abstract boolean isDirect()
      Indicates whether this buffer is direct.
      Specified by:
      isDirect in class Buffer
      Returns:
      true if this buffer is direct, false otherwise.

    • order

      public final ByteOrder order()
      Returns the byte order used by this buffer when converting bytes from/to other primitive types.

      The default byte order of byte buffer is always BIG_ENDIAN

      Returns:
      the byte order used by this buffer when converting bytes from/to other primitive types.

    • order

      public final ByteBuffer order​(ByteOrder byteOrder)
      Sets the byte order of this buffer.
      Parameters:
      byteOrder - the byte order to set. If null then the order will be LITTLE_ENDIAN.
      Returns:
      this
      See Also:
      ByteOrder

    • put

      public abstract ByteBuffer put​(byte b)
      Writes the given byte to the current position and increases the position by 1.
      Parameters:
      b - the byte to write.
      Returns:
      this
      Throws:
      BufferOverflowException - if position is equal or greater than limit.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • put

      public final ByteBuffer put​(byte[] src)
      Writes bytes in the given byte array to the current position and increases the position by the number of bytes written.

      Calling this method has the same effect as put(src, 0, src.length).

      Parameters:
      src - the source byte array.
      Returns:
      this
      Throws:
      BufferOverflowException - if remaining() is less than src.length.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • put

      public ByteBuffer put​(byte[] src, int srcOffset, int byteCount)
      Writes bytes in the given byte array, starting from the specified offset, to the current position and increases the position by the number of bytes written.
      Parameters:
      src - the source byte array.
      srcOffset - the offset of byte array, must not be negative and not greater than src.length.
      byteCount - the number of bytes to write, must not be negative and not greater than src.length - srcOffset.
      Returns:
      this
      Throws:
      BufferOverflowException - if remaining() is less than byteCount.
      IndexOutOfBoundsException - if either srcOffset or byteCount is invalid.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • put

      public ByteBuffer put​(ByteBuffer src)
      Writes all the remaining bytes of the src byte buffer to this buffer's current position, and increases both buffers' position by the number of bytes copied.
      Parameters:
      src - the source byte buffer.
      Returns:
      this
      Throws:
      BufferOverflowException - if src.remaining() is greater than this buffer's remaining().
      IllegalArgumentException - if src is this buffer.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • put

      public abstract ByteBuffer put​(int index, byte b)
      Write a byte to the specified index of this buffer without changing the position.
      Parameters:
      index - the index, must not be negative and less than the limit.
      b - the byte to write.
      Returns:
      this
      Throws:
      IndexOutOfBoundsException - if index is invalid.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putChar

      public abstract ByteBuffer putChar​(char value)
      Writes the given char to the current position and increases the position by 2.

      The char is converted to bytes using the current byte order.

      Parameters:
      value - the char to write.
      Returns:
      this
      Throws:
      BufferOverflowException - if position is greater than limit - 2.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putChar

      public abstract ByteBuffer putChar​(int index, char value)
      Writes the given char to the specified index of this buffer.

      The char is converted to bytes using the current byte order. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 2.
      value - the char to write.
      Returns:
      this
      Throws:
      IndexOutOfBoundsException - if index is invalid.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putDouble

      public abstract ByteBuffer putDouble​(double value)
      Writes the given double to the current position and increases the position by 8.

      The double is converted to bytes using the current byte order.

      Parameters:
      value - the double to write.
      Returns:
      this
      Throws:
      BufferOverflowException - if position is greater than limit - 8.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putDouble

      public abstract ByteBuffer putDouble​(int index, double value)
      Writes the given double to the specified index of this buffer.

      The double is converted to bytes using the current byte order. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 8.
      value - the double to write.
      Returns:
      this
      Throws:
      IndexOutOfBoundsException - if index is invalid.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putFloat

      public abstract ByteBuffer putFloat​(float value)
      Writes the given float to the current position and increases the position by 4.

      The float is converted to bytes using the current byte order.

      Parameters:
      value - the float to write.
      Returns:
      this
      Throws:
      BufferOverflowException - if position is greater than limit - 4.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putFloat

      public abstract ByteBuffer putFloat​(int index, float value)
      Writes the given float to the specified index of this buffer.

      The float is converted to bytes using the current byte order. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 4.
      value - the float to write.
      Returns:
      this
      Throws:
      IndexOutOfBoundsException - if index is invalid.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putInt

      public abstract ByteBuffer putInt​(int value)
      Writes the given int to the current position and increases the position by 4.

      The int is converted to bytes using the current byte order.

      Parameters:
      value - the int to write.
      Returns:
      this
      Throws:
      BufferOverflowException - if position is greater than limit - 4.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putInt

      public abstract ByteBuffer putInt​(int index, int value)
      Writes the given int to the specified index of this buffer.

      The int is converted to bytes using the current byte order. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 4.
      value - the int to write.
      Returns:
      this
      Throws:
      IndexOutOfBoundsException - if index is invalid.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putLong

      public abstract ByteBuffer putLong​(long value)
      Writes the given long to the current position and increases the position by 8.

      The long is converted to bytes using the current byte order.

      Parameters:
      value - the long to write.
      Returns:
      this
      Throws:
      BufferOverflowException - if position is greater than limit - 8.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putLong

      public abstract ByteBuffer putLong​(int index, long value)
      Writes the given long to the specified index of this buffer.

      The long is converted to bytes using the current byte order. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 8.
      value - the long to write.
      Returns:
      this
      Throws:
      IndexOutOfBoundsException - if index is invalid.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putShort

      public abstract ByteBuffer putShort​(short value)
      Writes the given short to the current position and increases the position by 2.

      The short is converted to bytes using the current byte order.

      Parameters:
      value - the short to write.
      Returns:
      this
      Throws:
      BufferOverflowException - if position is greater than limit - 2.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • putShort

      public abstract ByteBuffer putShort​(int index, short value)
      Writes the given short to the specified index of this buffer.

      The short is converted to bytes using the current byte order. The position is not changed.

      Parameters:
      index - the index, must not be negative and equal or less than limit - 2.
      value - the short to write.
      Returns:
      this
      Throws:
      IndexOutOfBoundsException - if index is invalid.
      ReadOnlyBufferException - if no changes may be made to the contents of this buffer.

    • slice

      public abstract ByteBuffer slice()
      Returns a sliced buffer that shares its content with this buffer.

      The sliced buffer's capacity will be this buffer's remaining(), and it's zero position will correspond to this buffer's current position. The new buffer's position will be 0, limit will be its capacity, and its mark is cleared. The new buffer's read-only property and byte order are the same as this buffer's.

      The new buffer shares its content with this buffer, which means either buffer's change of content will be visible to the other. The two buffers' position, limit and mark are independent.