URLConnection: setUseCaches(boolean usecaches)

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

public class MainClass {

  public static void main(String[] args) {
    URL u;
    URLConnection uc;
    try {
      u = new URL("http://www.java2s.com");
      try {
        uc = u.openConnection();
        if (uc.getUseCaches()) {
          uc.setUseCaches(false);
        }
      } catch (IOException e) {
        System.err.println(e);
      }
    } catch (MalformedURLException e) {
      System.err.println(e);
    }

  }

}