用方法名稱呼叫方法

參考Java Reflection package.

import java.lang.reflect.*;

public class method2 {
   public int add(int a, int b)   {
      return a + b;
}
public static void main(String args[])   {
      try {
        Class cls = Class.forName("method2");
        Class partypes[] = new Class[2];
         partypes[0] = Integer.TYPE;
         partypes[1] = Integer.TYPE;
         Method meth = cls.getMethod(
           "add", partypes);
         method2 methobj = new method2();
         Object arglist[] = new Object[2];
         arglist[0] = new Integer(37);
         arglist[1] = new Integer(47);
         Object retobj            = meth.invoke(methobj, arglist);
         Integer retval = (Integer)retobj;
         System.out.println(retval.intValue());
}
      catch (Throwable e) {
         System.err.println(e);
}
} }