import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;

public class MainFrame extends JFrame {
  public MainFrame() {
    // TODO Auto-generated constructor stub
    this.setTitle("登录界面");
    this.setSize(460,350);
    JLabel adress = new JLabel("节点地址:");
    JTextField ja = new JTextField();
    JLabel port = new JLabel("节点端口:");
    JTextField jp = new JTextField();
    JLabel password = new JLabel("连接密码:");
    JTextField jpa = new JTextField();
    JLabel Lport = new JLabel("本地端口:");
    JTextField  jL = new JTextField();
    
    JButton exit = new JButton("退出");
    exit.addActionListener(new ActionListener() {
      
      @Override
      public void actionPerformed(ActionEvent e) {
        // TODO Auto-generated method stub
        System.exit(0);
      }
    });
    JButton  ensure = new JButton("确认");
    JButton cancle = new JButton("取消");
    
    adress.setBounds(50, 50, 70, 30);
    port.setBounds(50, 100, 70, 30);
    password.setBounds(50, 150, 70, 30);
    Lport.setBounds(50, 200, 70, 30);
    exit.setBounds(120, 250, 60, 30);
    ensure.setBounds(200, 250, 60, 30);
    cancle.setBounds(280, 250, 60, 30);
    
    ja.setBounds(250, 50, 180, 25);
    jp.setBounds(250, 100, 180, 25);
    jpa.setBounds(250, 150, 180, 25);
    jL.setBounds(250, 200, 180, 25);
    // 设置布局为空，使用坐标控制控件位置的时候，一定要设置布局为空
    this.setLayout(null);
    
    this.add(adress);
    this.add(port);
    this.add(password);
    this.add(Lport);
    this.add(exit);
    this.add(ensure);
    this.add(cancle);
    
    this.add(ja);
    this.add(jp);
    this.add(jpa);
    this.add(jL);
    
    this.setLocationRelativeTo(null);
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.setVisible(true);
    
  }
  public static void main(String[] args) {
    // TODO Auto-generated method stub
    new MainFrame();
  }

}



自作的一个Prison Break 界面_java