1
我使用WindowBuilder创建GUI。 我有点新JFrame,我有一个问题:我添加了一个JSpinner,我想将我放在微调器中的数字保存到一个int中,以便稍后使用它。有人可以帮帮我吗?谢谢。将JSpinner值转换为新的int
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JTextField;
import java.awt.BorderLayout;
import javax.swing.SwingConstants;
import java.awt.Font;
import javax.swing.JSpinner;
import javax.swing.SpinnerNumberModel;
import java.awt.Color;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class frame1 {
private JFrame frame;
private JTextField txtHoeveelEuroWil;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
frame1 window = new frame1();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public frame1() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.setBounds(100, 100, 450, 300);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JSpinner spinner = new JSpinner();
spinner.setModel(new SpinnerNumberModel(20, 20, 500, 20));
spinner.setBounds(116, 100, 200, 50);
frame.getContentPane().add(spinner);
int value;
JButton btnNewButton = new JButton("OK");
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
//value=Integer.parseint ???
//what should I type here to save the number that I entered
//in the spinner?
}
});
btnNewButton.setBounds(172, 177, 89, 32);
frame.getContentPane().add(btnNewButton);
}
}
谢谢! –
@RaymondTimmermans您必须调用'commitEdit'才能获取最后一个值。否则,如果用户编辑了微调器,则不会得到更新的值,而是会得到旧的值;) – MCHAppy