org.jsynthlib.core

Class Utility

java.lang.Object

org.jsynthlib.core.Utility

public class Utility
extends Object

This class provides various utility methods.

Author:

phil@muqus.com - 07/2001, Hiroo Hayashi

Method Summary

Modifier and Type	Method and Description
static byte[]	byteArrayDelete(byte[] src, int offset, int len) Return a copy of a source byte array with a region deleted.
static byte[]	byteArrayInsert(byte[] src, int offset, byte[] insert, int insertOffset, int insertLen) Return a copy of a source byte array with a region inserted.
static byte[]	byteArrayReplace(byte[] src, int offset, int len, byte[] insert, int insertOffset, int insertLen) Return a copy of a source byte array with a region replaced.
static void	centerWindow(Window window) Request a window to be centered on the display screen.
static Frame	getFrame(Component component) Get the parent frame of a component.
static String	getJavaVersion() Get the Java version.
static String	getOSName() Get the operating system name.
static String	getOSVersion() Get the operating system version.

Methods inherited from class java.lang.Object

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

Method Detail

getOSName

public static String getOSName()

Get the operating system name.

Returns:

the operating system name

getOSVersion

public static String getOSVersion()

Get the operating system version.

Returns:

the operating system version

getJavaVersion

public static String getJavaVersion()

Get the Java version.

Returns:

the Java version

byteArrayDelete

public static byte[] byteArrayDelete(byte[] src,
                                     int offset,
                                     int len)

Return a copy of a source byte array with a region deleted.

Parameters:

src - the source array to copy

offset - the offset of the region to delete

len - the length in bytes of the region to delete

Returns:

a copy of the source array with the region deleted

byteArrayInsert

public static byte[] byteArrayInsert(byte[] src,
                                     int offset,
                                     byte[] insert,
                                     int insertOffset,
                                     int insertLen)

Return a copy of a source byte array with a region inserted.

Parameters:

src - the source array to copy

offset - the offset of the region to insert

insert - the array to insert a region of

insertOffset - the offset of the region to insert

insertLen - the length in bytes of the region to insert

Returns:

a copy of the source array with the region inserted

byteArrayReplace

public static byte[] byteArrayReplace(byte[] src,
                                      int offset,
                                      int len,
                                      byte[] insert,
                                      int insertOffset,
                                      int insertLen)

Return a copy of a source byte array with a region replaced.

Parameters:

src - the source array to copy

offset - the offset of the region to replace

len - the length of the region to replace

insert - the array to insert a region of

insertOffset - the offset of the region to insert

insertLen - the length in bytes of the region to insert

Returns:

a copy of the source array with the region replaced

getFrame

public static Frame getFrame(Component component)

Get the parent frame of a component. Returns the component if it is a an instance of the Frame class, the parent frame, or null if the component is not an instance of the Frame class and does not have a parent frame.

Parameters:

component - the component to get the parent frame of

Returns:

the parent frame

centerWindow

public static void centerWindow(Window window)

Request a window to be centered on the display screen.

Parameters:

window - the window to request be centered on the display screen