最简单的一个Java窗体示例!

package cs1;
import java.awt.*;
public class Frame1 extends Frame
{
public Frame1(String title)
{
    super(title);//
}
public static void main(String args[])
{
    Frame1 test=new Frame1("WK");
    test.setLocation(100,100);
    test.setSize(300,300);
    test.setVisible(true);
}
}