当我单击 JOptionPane.showMessageDialog 中的 OK 按钮时，Java 程序退出
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Java program exits when I click OK button in JOptionPane.showMessageDialog
提问by Haxed
when I click the OKbutton in second.java program, the program exit the program. I want it not to exit (since there is a thread running). I tried removing setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE).
当我在 second.java 程序中单击OK按钮时，程序退出程序。我希望它不要退出（因为有一个线程正在运行）。我尝试删除setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)。
CODE
代码
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.JOptionPane;
import javax.swing.JTextField;
public class second extends JFrame implements ActionListener {
JLabel enterName;
JTextField name;
JButton click;
String storeName;
public second(){
setLayout(null);
setSize(300,250);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
enterName = new JLabel("Enter Your Name: ");
click = new JButton("Click");
name = new JTextField();
enterName.setBounds(60,30,120,30);
name.setBounds(80,60,130,30);
click.setBounds(100,190,60,30);
click.addActionListener(this);
add(click);
add(name);
add(enterName);
}
public void actionPerformed(ActionEvent e) {
if(e.getSource() == click) {
storeName = name.getText();
JOptionPane.showMessageDialog(null, "Hello" + storeName);
System.exit(0);
}
}
public static void main(String args[]){
second s = new second();
s.setVisible(true);
}
}
Many Thanks
非常感谢
回答by icktoofay
You'll need to remove the System.exit(0);line. That's all.
您需要删除该System.exit(0);行。就这样。
