java图形用户界面练习。j2se

总结：主要是如何布局。还是存在很大问题

package clientFrame;

import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JPasswordField;

public class see extends JFrame {
	// 做一个登陆的密码，账户框。2个h文本框，2个label
	JLabel jl1, jl2;
	JButton jb;
	JPasswordField pf;
	JTextField tf1, tf2;

	public see() {
		jl1 = new JLabel("用户名：");
		jb = new JButton("登  陆");
		jl2 = new JLabel("密   码：");
		tf1 = new JTextField(10);
		pf = new JPasswordField(10);
		tf2 = new JTextField(10);
		this.setVisible(true);
		this.setLayout(new FlowLayout());
		this.add(jl1);
		this.add(tf1);
		this.add(jl2);
		this.add(pf);
		// this.add(tf2);
		this.add(jb);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setSize(200, 200);
	}

	public static void main(String[] args) {

		see s = new see();
	}
}