testclassloader.java

一个很好的Java函数实例

package apibook.c2.s3;

import java.io.*;
import java.net.*;
public class TestClassLoader {
  public static void main(String[] args) {
    try {
      ClassLoader cl=ClassLoader.getSystemClassLoader();
      System.out.println("Parent:"+cl.getParent());
      Class c= cl.loadClass("apibook.c2.s3.TestRunnable");

      System.out.println("Class: "+c);
      System.out.println("Package: "+c.getPackage());
      System.out.println("Resource: "+cl.getResource(""));
      System.out.println("Resource Stream: "+cl.getResourceAsStream(""));
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }

  }
}