exceptionthrowingopcodestest.java

来自「This is a resource based on j2me embedde」· Java 代码 · 共 58 行

/*
 * @(#)ExceptionThrowingOpcodesTest.java	1.7 06/10/10
 *
 * Copyright  1990-2008 Sun Microsystems, Inc. All Rights Reserved.  
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER  
 *   
 * This program is free software; you can redistribute it and/or  
 * modify it under the terms of the GNU General Public License version  
 * 2 only, as published by the Free Software Foundation.   
 *   
 * This program is distributed in the hope that it will be useful, but  
 * WITHOUT ANY WARRANTY; without even the implied warranty of  
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU  
 * General Public License version 2 for more details (a copy is  
 * included at /legal/license.txt).   
 *   
 * You should have received a copy of the GNU General Public License  
 * version 2 along with this work; if not, write to the Free Software  
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  
 * 02110-1301 USA   
 *   
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa  
 * Clara, CA 95054 or visit www.sun.com if you need additional  
 * information or have any questions. 
 *
 */
public class ExceptionThrowingOpcodesTest {

    public static void printFloat(Object arg) {
	float[] arr = (float[]) arg;
	System.out.println(arr[0]);
    }


    public static void main(String[] args) {
	int[] ints = {2, 3};
	
	System.out.println("If \"Test 1 succeeded\" is not the next output, " +
			   "the test failed.");
	try {
	    printFloat(ints);
	}
	catch (ClassCastException e) {
	    System.out.println("Test 1 succeeded");
	}

	System.out.println("If \"Test 2 succeeded\" is not the next output, " +
			   "the test failed.");
	ints = null;
	try {
	    System.out.println("ints.length = " + ints.length);
	}
	catch (NullPointerException e) {
	    System.out.println("Test 2 succeeded");
	}
    }
}