org.strbio.util
Class JMC

java.lang.Object
  org.strbio.util.JMC

public final class JMC
extends java.lang.Object

A class containing a bunch of useful functions

Version:

1.5, 2/21/02

Author:

JMC

Method Summary

static void	centerFrame(java.awt.Frame f) Center a frame on the screen.
static void	drawLineDashed(java.awt.Graphics g, int ax, int ay, int bx, int by) draw a dashed line from point a to point b.
static void	drawLineDashed(java.awt.Graphics g, int ax, int ay, int bx, int by, int segsize) draw a dashed line from point a to point b.
static void	drawLineDotted(java.awt.Graphics g, int ax, int ay, int bx, int by) draw a dotted line from point a to point b.
static void	drawLineHalfway(java.awt.Graphics g, int ax, int ay, int bx, int by) draw a line from point a halfway to point b.
static void	fatal(java.lang.String s) Print a fatal error, attempt to flush System.out and System.err, and exit with status one.
static boolean	isLittleEndian() This guesses whether the current machine is little-endian, and would therefore need to use the reverseEndian calls when reading/writing DataStreams for use with C programs.
static void	oldCenterFrame(java.awt.Frame f) Center a frame on the screen.
static void	oldRandomlyLocateFrame(java.awt.Frame f) Randomly locate a frame somewhere on the screen where it fits.
static void	printArgs(java.lang.String[] argv) Print out the arguments used to call the program to the standard output stream.
static void	printArgs(java.lang.String[] argv, Printf outfile) Print out the arguments used to call the program to a given Printf.
static void	printTime(float seconds) Given a time in seconds, prints it in hours:minutes:seconds format to standard output.
static void	printTime(float seconds, Printf outfile) Given a time in seconds, prints it in hours:minutes:seconds format.
static void	programTimer() Program timer routine.
static void	programTimer(Printf outfile) Program timer routine.
static void	randomlyLocateFrame(java.awt.Frame f) Randomly locate a frame somewhere on the screen where it fits.
static double	reverseEndian(double d) byte-reverse a double
static int	reverseEndian(int i) byte-reverse an integer
static long	reverseEndian(long l) byte-reverse a long

Methods inherited from class java.lang.Object

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

Method Detail

fatal

public static final void fatal(java.lang.String s)

Print a fatal error, attempt to flush System.out and System.err, and exit with status one. You should throw an exception instead unless the error is really fatal.

Parameters:

s - Text explaining the error.

printArgs

public static final void printArgs(java.lang.String[] argv,
                                   Printf outfile)
                            throws java.io.IOException

Print out the arguments used to call the program to a given Printf. Output looks like:

      Arguments:
        arg1 arg2 arg3 ....


      

Parameters:

argv - The arguments that got passed to main.

outfile - File to output them to

Throws:

java.io.IOException

printArgs

public static final void printArgs(java.lang.String[] argv)
                            throws java.io.IOException

Print out the arguments used to call the program to the standard output stream.

      Arguments:
        arg1 arg2 arg3 ....


      

Parameters:

argv - The arguments that got passed to main.

Throws:

java.io.IOException

printTime

public static final void printTime(float seconds,
                                   Printf outfile)
                            throws java.io.IOException

Given a time in seconds, prints it in hours:minutes:seconds format.

Parameters:

seconds - number of seconds

outfile - where to print it to

Throws:

java.io.IOException

printTime

public static final void printTime(float seconds)
                            throws java.io.IOException

Given a time in seconds, prints it in hours:minutes:seconds format to standard output.

Parameters:

seconds - number of seconds

Throws:

java.io.IOException

programTimer

public static final void programTimer(Printf outfile)
                               throws java.io.IOException

Program timer routine. Call this at the beginning of your program, and it prints info about the host name and version of java, as well as remembering what time you called it at. Call this at the end of your program and it prints the elapsed time. It only prints wall time; there doesn't seem to be a way to get the CPU time from Java witout calling native methods. Every call flip-flops it from one function to the other.

Parameters:

outfile - where to print to

Throws:

java.io.IOException

programTimer

public static final void programTimer()
                               throws java.io.IOException

Program timer routine. Call this at the beginning of your program, and it prints info about the host name and version of java, as well as remembering what time you called it at. Call this at the end of your program and it prints the elapsed time. It only prints wall time; there doesn't seem to be a way to get the CPU time from Java witout calling native methods. This version just prints to standard output.

Throws:

java.io.IOException

randomlyLocateFrame

public static final void randomlyLocateFrame(java.awt.Frame f)

Randomly locate a frame somewhere on the screen where it fits. This should be called somewhere after pack().

centerFrame

public static final void centerFrame(java.awt.Frame f)

Center a frame on the screen. This can be called anywhere after pack().

oldRandomlyLocateFrame

public static final void oldRandomlyLocateFrame(java.awt.Frame f)

Randomly locate a frame somewhere on the screen where it fits. This should be called somewhere after pack().

oldCenterFrame

public static final void oldCenterFrame(java.awt.Frame f)

Center a frame on the screen. This can be called anywhere after pack().

drawLineDashed

public static final void drawLineDashed(java.awt.Graphics g,
                                        int ax,
                                        int ay,
                                        int bx,
                                        int by,
                                        int segsize)

draw a dashed line from point a to point b.

drawLineDashed

public static final void drawLineDashed(java.awt.Graphics g,
                                        int ax,
                                        int ay,
                                        int bx,
                                        int by)

draw a dashed line from point a to point b.

drawLineDotted

public static final void drawLineDotted(java.awt.Graphics g,
                                        int ax,
                                        int ay,
                                        int bx,
                                        int by)

draw a dotted line from point a to point b.

drawLineHalfway

public static final void drawLineHalfway(java.awt.Graphics g,
                                         int ax,
                                         int ay,
                                         int bx,
                                         int by)

draw a line from point a halfway to point b.

isLittleEndian

public static final boolean isLittleEndian()

This guesses whether the current machine is little-endian, and would therefore need to use the reverseEndian calls when reading/writing DataStreams for use with C programs.

reverseEndian

public static final int reverseEndian(int i)

byte-reverse an integer

reverseEndian

public static final long reverseEndian(long l)

byte-reverse a long

reverseEndian

public static final double reverseEndian(double d)

byte-reverse a double