SampleInvoke.java Source code

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Here is the source code for SampleInvoke.java

Source

/* From http://java.sun.com/docs/books/tutorial/index.html */

/*
 * Copyright (c) 1995-1998 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for NON-COMMERCIAL purposes and without fee is hereby granted
 * provided that this copyright notice appears in all copies. Please refer to
 * the file "copyright.html" for further important copyright and licensing
 * information.
 * 
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
 * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
 * NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY
 * LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES.
 */

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class SampleInvoke {

    public static void main(String[] args) {
        String firstWord = "Hello ";
        String secondWord = "everybody.";
        String bothWords = append(firstWord, secondWord);
        System.out.println(bothWords);
    }

    public static String append(String firstWord, String secondWord) {
        String result = null;
        Class c = String.class;
        Class[] parameterTypes = new Class[] { String.class };
        Method concatMethod;
        Object[] arguments = new Object[] { secondWord };
        try {
            concatMethod = c.getMethod("concat", parameterTypes);
            result = (String) concatMethod.invoke(firstWord, arguments);
        } catch (NoSuchMethodException e) {
            System.out.println(e);
        } catch (IllegalAccessException e) {
            System.out.println(e);
        } catch (InvocationTargetException e) {
            System.out.println(e);
        }
        return result;
    }
}