Package sandbox

Source Code of sandbox.CastTest

/*
* CastTest.java
*
* Copyright (c) 2010, Ralf Biedert All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer. Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the author nor the names of its contributors may be used to endorse or
* promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package sandbox;

import java.io.PrintStream;
import java.lang.reflect.Array;
import java.lang.reflect.Constructor;

import sandbox.dummys.F0Impl;

public class CastTest {
    public static void main(String[] args) throws Exception {
        String ss[] = new String[10];
        Object so[] = new Object[10];

        Object o = new Object();
        String s = "34";

        so[3] = o;
        so[3] = s;

        ss[3] = s;
        // ss[3] = (String) o;

        Object xo[] = (String[]) Array.newInstance(String.class, 10);
        // String xs[] = (String[]) Array.newInstance(Object.class, 10);

        System.out.println(xo);

        Object newInstance = Array.newInstance(int.class, 10);
        System.out.println(newInstance);

        Constructor<CastTest> constructor = CastTest.class.getConstructor(new Class[0]);
        System.out.println(constructor);
       
        //doReflection();
        //doRegular();
        //doConstructor();
       
        //so = ss;
        //so[0] = System.out;
       
        System.out.println(ss[0]);

    }

    public static void doRegular() throws Exception {
        long start = System.currentTimeMillis();
        for (int i = 0; i < 10000000; i++) {
            F0Impl a = new F0Impl();
        }
        System.out.println(System.currentTimeMillis() - start);
    }

    public static void doReflection() throws Exception {
        long start = System.currentTimeMillis();
        for (int i = 0; i < 10000000; i++) {
            F0Impl a = (F0Impl) F0Impl.class.newInstance();
        }
        System.out.println(System.currentTimeMillis() - start);
    }

    public static void doConstructor() throws Exception {
       
        long start = System.currentTimeMillis();
        for (int i = 0; i < 10000000; i++) {
            Class<? extends PrintStream> class1 = System.err.getClass();
           
            Constructor<F0Impl> constructor = F0Impl.class.getConstructor(null);
            F0Impl newInstance = constructor.newInstance(null);
        }
        System.out.println(System.currentTimeMillis() - start);
    }


}
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