net.pwall.util

Class SubSequence

java.lang.Object

net.pwall.util.SubSequence

All Implemented Interfaces:

CharSequence

public class SubSequence
extends Object
implements CharSequence

A sub-sequence of a CharSequence.

Author:

Peter Wall

Constructor Summary

Constructors

Constructor and Description
SubSequence(CharSequence seq, int start, int end) Create a sub-sequence from the specified CharSequence.

Method Summary

Modifier and Type	Method and Description
char	charAt(int index)
int	length()
CharSequence	subSequence(int start, int end)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.CharSequence

chars, codePoints

Constructor Detail

SubSequence

public SubSequence(CharSequence seq,
                   int start,
                   int end)

Create a sub-sequence from the specified CharSequence.

Parameters:

seq - the original CharSequence

start - the start index of the sub-sequence

end - the end index of the sub-sequence

Throws:

NullPointerException - if the original CharSequence is null

IllegalArgumentException - if the start or end index is invalid

Method Detail

length

public int length()

Specified by:

length in interface CharSequence

charAt

public char charAt(int index)

Specified by:

charAt in interface CharSequence

subSequence

public CharSequence subSequence(int start,
                                int end)

Specified by:

subSequence in interface CharSequence

toString

public String toString()

Specified by:

toString in interface CharSequence

Overrides:

toString in class Object