reflect_demo7.java

java编程源代码

import java.lang.reflect.*;

public class reflect_demo7{
   public static void main(String args[])
   {
        try 
		{
           Class cls = Class.forName("test");
           Class partypes[] = new Class[2];
            partypes[0] = String.class;
            partypes[1] = Integer.TYPE;
            Constructor  meth = cls.getConstructor(partypes);
            Object arglist[] = new Object[2];
            arglist[0] = "hello the world";
            arglist[1] = new Integer(47);
            Object retobj = meth.newInstance(arglist);            
            System.out.println(retobj);
         }
         catch (Throwable e) {
            System.err.println(e);
         }
   }
}

class test
{
	private String name;
	public int a;
	public test(String name, int a)
	{
		this.name=name;
		this.a=a;
	}
	public test()
	{
	}
 	public void show()
	{
	    System.out.println("hello the test");
	}
	public int add(int a,int b)
	{
	    return a+b;
	}
}