java点击按钮弹出对话框

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

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

public class LoginFrame extends JFrame {
	
	JButton button = new JButton("点击我");
	JButton button1 = new JButton("ok");
	
	
	
	
	
	public LoginFrame(){
		super();
		this.setResizable(false);
		this.setSize(new Dimension(300, 205));
		this.setTitle("第一个窗体");
		this.setLayout(null);
		this.setDefaultCloseOperation(EXIT_ON_CLOSE);
		this.setLocation(300, 200);
		this.setVisible(true);
		
		this.getContentPane().add(button, null);
		button.setBounds(new Rectangle(111, 70, 78, 27));
		button.addActionListener(new LoginOKAction());//给按钮加事件监听器
		
		
	}
	
	
    class LoginOKAction implements ActionListener {
		
		public void actionPerformed(ActionEvent e) {
			
     //	JFrame jf = new JFrameTest();
	//	jf.setSize(300,300);
		JFrame jf = new  SwingThreadTest3();
		jf.pack();
		jf.setVisible(true);
			
			
			
		}
	}
	
	
	
	public static void main(String[] args) {
		new LoginFrame();
	}
}


class JFrameTest extends JFrame{  
	
	JButton jb1 = new JButton("java let's go ");
	
    public JFrameTest(){  
    	 this.setSize(300, 300);  
         this.setTitle("弹出框");  
         this.add(jb1);
    }  
}  




import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JProgressBar;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
public class SwingThreadTest3 extends JFrame {
	private static final long serialVersionUID = 1L;
	private static final String STR = "Completed : ";
	private JProgressBar progressBar = new JProgressBar();
	private JTextField text = new JTextField(10);
	private JButton start = new JButton("Start");
	private JButton end = new JButton("End");
	private boolean flag = false;
	private int count = 0;
	
	private GoThread t = null;
	
	private Runnable run = null;//更新组件的线程
	public SwingThreadTest3() {
		this.setLayout(new FlowLayout());
		add(progressBar);
		text.setEditable(false);
		add(text);
		add(start);
		add(end);
		start.addActionListener(new Start());
		end.addActionListener(new End());
		
		run = new Runnable(){//实例化更新组件的线程
			public void run() {
				progressBar.setValue(count);
				text.setText(STR + String.valueOf(count) + "%");
			}
		};
	}
	private void go() {
		while (count < 100) {
			try {
				Thread.sleep(100);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			if (flag) {
				count++;
				SwingUtilities.invokeLater(run);//将对象排到事件派发线程的队列中
			}
		}
	}
	private class Start implements ActionListener {
		public void actionPerformed(ActionEvent e) {
			flag = true;
			if(t == null){
				t = new GoThread();
				t.start();
			}
		}
	}
	
	class GoThread extends Thread{
		public void run() {
			//do something...
			go();
		}
	}
	private class End implements ActionListener {
		public void actionPerformed(ActionEvent e) {
			flag = false;
		}
	}
	public static void main(String[] args) {
		SwingThreadTest3 fg = new SwingThreadTest3();
		fg.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		fg.setSize(300, 100);
		fg.setVisible(true);
	}
}




你可能感兴趣的:(java点击按钮弹出对话框)