```
public final class SystemUtil
extends Object
```
This class contains a collection of commonly used static methods which reveal system-wide information. These provide no security-related fixes to any issue, and are merely available as a convenience.

Since:

1.0

Author:

Steve Springett

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static String`	`getBitBucket()`	Return the bit bucket for the OS.
`static String`	`getClassPath()`	Return the classpath.
`static int`	`getCpuCores()`	Returns the number of processor cores available to the JVM.
`static String`	`getFileSeparator()`	Return the file separator character that separates components of a file path.
`static String`	`getJavaHome()`	Return the JAVA_HOME environment variable.
`static String`	`getJavaTempDir()`	Return the temporary directory to be used by Java.
`static String`	`getJavaVendor()`	Return the Java vendor.
`static Runtime.Version`	`getJavaVersion()`	Return the Java version.
`static String`	`getLibraryPath()`	Return the library path.
`static String`	`getLineEnder()`	Return the correct line ender for the host operating system, e.g.
`static long`	`getMaxMemory()`	Returns the number of processor cores available to the JVM.
`static String`	`getOsArchitecture()`	Return the OS architecture.
`static String`	`getOsName()`	Return the name of the host operating system.
`static String`	`getOsVersion()`	Return the OS version.
`static String`	`getPathSeparator()`	Return the path separator character used in java.class.path.
`static String`	`getUserHome()`	Return the home directory of the user executing the current running Java process.
`static String`	`getUserName()`	Return the username that is executing the current running Java process.
`static boolean`	`is32Bit()`	Return true if the OS architecture model is 32bit.
`static boolean`	`is64Bit()`	Return true if the OS architecture model is 64bit.
`static boolean`	`isLinux()`	Return true if the host operating system is Linux.
`static boolean`	`isMac()`	Return true if the host operating system is OS X.
`static boolean`	`isSolaris()`	Return true if the host operating system is SunOS/Solaris.
`static boolean`	`isUnix()`	Return true if the host operating system is Unix/Linux.
`static boolean`	`isWindows()`	Return true if the host operating system is Windows.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - isWindows
```
public static boolean isWindows()
```
    Return true if the host operating system is Windows. Given the currently-supported set of platforms, if this returns false, the OS must be some flavor of UNIX.
    
    Returns:
    
    True if Windows, False if not
    
    Since:
    
    1.0
  - isMac
```
public static boolean isMac()
```
    Return true if the host operating system is OS X.
    
    Returns:
    
    True if OS X, False if not
    
    Since:
    
    1.0
  - isLinux
```
public static boolean isLinux()
```
    Return true if the host operating system is Linux.
    
    Returns:
    
    True if Linux, False if not
    
    Since:
    
    1.0
  - isUnix
```
public static boolean isUnix()
```
    Return true if the host operating system is Unix/Linux. This includes all OS's (except for Mac) which fall in this category.
    
    Returns:
    
    True if Unix, False if not
    
    Since:
    
    1.0
  - isSolaris
```
public static boolean isSolaris()
```
    Return true if the host operating system is SunOS/Solaris.
    
    Returns:
    
    True if Solaris, False if not
    
    Since:
    
    1.0
  - getLineEnder
```
public static String getLineEnder()
```
    Return the correct line ender for the host operating system, e.g. \r\n for Windows, \n for UNIX.
    
    Returns:
    
    String containing the line ender for the host operating system
    
    Since:
    
    1.0
  - is32Bit
```
public static boolean is32Bit()
```
    Return true if the OS architecture model is 32bit.
    
    Returns:
    
    True if 32bit, False if not
    
    Since:
    
    1.0
  - is64Bit
```
public static boolean is64Bit()
```
    Return true if the OS architecture model is 64bit.
    
    Returns:
    
    True if 64bit, False if not
    
    Since:
    
    1.0
  - getOsName
```
public static String getOsName()
```
    Return the name of the host operating system.
    
    Returns:
    
    String containing the name of the host operating system
    
    Since:
    
    1.0
  - getOsArchitecture
```
public static String getOsArchitecture()
```
    Return the OS architecture.
    
    Returns:
    
    String containing the OS architecture
    
    Since:
    
    1.0
  - getOsVersion
```
public static String getOsVersion()
```
    Return the OS version.
    
    Returns:
    
    String containing the OS version
    
    Since:
    
    1.0
  - getFileSeparator
```
public static String getFileSeparator()
```
    Return the file separator character that separates components of a file path. This is "/" on UNIX and "\" on Windows.
    
    Returns:
    
    String containing the file separator character
    
    Since:
    
    1.0
  - getPathSeparator
```
public static String getPathSeparator()
```
    Return the path separator character used in java.class.path.
    
    Returns:
    
    String containing the path separator character
    
    Since:
    
    1.0
  - getUserName
```
public static String getUserName()
```
    Return the username that is executing the current running Java process.
    
    Returns:
    
    String containing the username that is executing the current running Java process
    
    Since:
    
    1.0
  - getUserHome
```
public static String getUserHome()
```
    Return the home directory of the user executing the current running Java process.
    
    Returns:
    
    String containing the home directory of the user executing the current running Java process
    
    Since:
    
    1.0
  - getJavaVendor
```
public static String getJavaVendor()
```
    Return the Java vendor.
    
    Returns:
    
    String containing the Java vendor
    
    Since:
    
    1.0
  - getJavaVersion
```
public static Runtime.Version getJavaVersion()
```
    Return the Java version.
    
    Returns:
    
    JavaVersion containing Java version information
    
    Since:
    
    1.0
  - getJavaHome
```
public static String getJavaHome()
```
    Return the JAVA_HOME environment variable.
    
    Returns:
    
    String containing the JAVA_HOME environment variable
    
    Since:
    
    1.0
  - getJavaTempDir
```
public static String getJavaTempDir()
```
    Return the temporary directory to be used by Java.
    
    Returns:
    
    String containing the temporary directory to be used by Java
    
    Since:
    
    1.0
  - getClassPath
```
public static String getClassPath()
```
    Return the classpath.
    
    Returns:
    
    String containing the classpath
    
    Since:
    
    1.0
  - getLibraryPath
```
public static String getLibraryPath()
```
    Return the library path.
    
    Returns:
    
    String containing the library path
    
    Since:
    
    1.0
  - getBitBucket
```
public static String getBitBucket()
```
    Return the bit bucket for the OS. '/dev/null' for Unix and 'NUL' for Windows.
    
    Returns:
    
    a String containing the bit bucket
    
    Since:
    
    1.0
  - getCpuCores
```
public static int getCpuCores()
```
    Returns the number of processor cores available to the JVM.
    
    Returns:
    
    an integer of the number of processor core
    
    Since:
    
    1.0.0
  - getMaxMemory
```
public static long getMaxMemory()
```
    Returns the number of processor cores available to the JVM.
    
    Returns:
    
    an integer of the number of processor core
    
    Since:
    
    1.9.0

Class SystemUtil

Method Summary

Methods inherited from class java.lang.Object

Method Detail

isWindows

isMac

isLinux

isUnix

isSolaris

getLineEnder

is32Bit

is64Bit

getOsName

getOsArchitecture

getOsVersion

getFileSeparator

getPathSeparator

getUserName

getUserHome

getJavaVendor

getJavaVersion

getJavaHome

getJavaTempDir

getClassPath

getLibraryPath

getBitBucket

getCpuCores

getMaxMemory