Question

java 画线

用java在JFrame中画一条线

Answer 1

public class YunNian {
public static void main(String[] args) {
new T();
}
}

class T extends JFrame {
public T() {

setBounds(200,100,200,500);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}

@Override
public void paint(Graphics g) {

super.paint(g);
g.drawLine(40,40,100,100);
}
}