package my.first.java;import java.awt.*;public class testJava extends Frame{ public void paint(Graphics g){
g.setColor(Color.BLUE);
g.fillOval(30, 30, 500, 500);
}
public void lauchFrame(){
this.setBounds(400,400,300,300);
this.setVisible(true);
}
public static void main(String[] args) {
new testJava().lauchFrame(); } }
g.setColor(Color.BLUE);
g.fillOval(30, 30, 500, 500);
}
public void lauchFrame(){
this.setBounds(400,400,300,300);
this.setVisible(true);
}
public static void main(String[] args) {
new testJava().lauchFrame(); } }
这个windows中的窗口事件是一样的