java.lang.Class.getMethod()

package com.codingdict;



import java.lang.reflect.*;



public class ClassDemo {



   public static void main(String[] args) {



      ClassDemo cls = new ClassDemo();

      Class c = cls.getClass();



      try {                

         // parameter type is null

         方法 m = c.getMethod("show", null);

         System.out.println("method = " + m.toString());        

      } catch(NoSuchMethodException e) {

         System.out.println(e.toString());

      }



      try {

         // method Long

         Class[] cArg = new Class[1];

         cArg[0] = Long.class;

         方法 lMethod = c.getMethod("showLong", cArg);

         System.out.println("method = " + lMethod.toString());

      } catch(NoSuchMethodException e) {

         System.out.println(e.toString());

      }

   }



   public Integer show() {

      return 1;

   }



   public void showLong(Long l) {

      this.l = l;

   }

   long l = 78655;

}