Mega Code Archive
Demonstrates the pitfalls of depending on the order of static initializers
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/*
* file: StaticOrderDemo.java
* package: oreilly.hcj.review
*
* This software is granted under the terms of the Common Public License,
* CPL, which may be found at the following URL:
* http://www-124.ibm.com/developerworks/oss/CPLv1.0.htm
*
* Copyright(c) 2003-2005 by the authors indicated in the @author tags.
* All Rights are Reserved by the various authors.
*
########## DO NOT EDIT ABOVE THIS LINE ########## */
import java.util.Arrays;
/**
* Demonstrates the pitfalls of depending on the order of static initializers.
*
* @author <a href=mailto:kraythe@arcor.de>Robert Simmons jr. (kraythe)</a>
* @version $Revision: 1.3 $
*/
public class StaticOrderDemo {
static {
Class cl = Values.class;
System.out.println("Class " + cl.getName() + " Loaded");
}
/**
* Creates a new instance of StaticOrderDemo
*/
public StaticOrderDemo() {
}
/**
* The main demo method. Used only to start the virtual machine.
*
* @param args Arguments passed.
*/
public static final void main(final String[] args) {
}
// --- Inner Classes --
/**
* Holds ranges for the values.
*
* @author <a href=mailto:kraythe@arcor.de>Robert Simmons jr. (kraythe)</a>
* @version $Revision: 1.3 $
*/
public static class Ranges {
/** Bluw range */
public static final String[] RANGE_BLUE = { "Sky", "Navy" };
/** Red range */
public static final String[] RANGE_RED = { "Light", "Dark" };
static {
System.out.println("static{} method for Ranges");
System.out.println(Arrays.asList(RANGE_BLUE));
System.out.println(Values.VALUE_SPECIFIER);
System.out.println(Arrays.asList(RANGE_RED));
}
}
/**
* Holds values.
*
* @author <a href=mailto:kraythe@arcor.de>Robert Simmons jr. (kraythe)</a>
* @version $Revision: 1.3 $
*/
public static class Values {
/** A value holder */
public static final String VALUE = "Blue";
/** A specifier for the value */
public static final String VALUE_SPECIFIER;
static {
System.out.println("static{} method for Values");
System.out.println(VALUE);
System.out.println(Ranges.RANGE_BLUE);
VALUE_SPECIFIER = Ranges.RANGE_BLUE[1];
}
}
}
/* ########## End of File ########## */
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