Question

创建一个名为HelloWorldApp的java application，在屏幕上简单的显示一句话"Hello

Answer 1

import java.awt.*;
import javax.swing.*;

public class HelloWorldApp extends JFrame
{
public static void main(String[] args)
{
new HelloWorldApp();
}
HelloWorldApp()
{
add(new JPanel()
{
protected void paintComponent(Graphics g)
{
g.drawString("Hello",100,100);
}
});
setSize(400,300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
setVisible(true);
}
}

Answer 2

adroid 还是 Java？