Question

java 怎么获取label的值,并且把其值写到文件中

Answer 1

public class Test {
JFrame myframe = new JFrame();
JLabel label1 = new JLabel("label1");
JLabel label2 = new JLabel("label2");
JButton button1 = new JButton("确定");
JButton button2 = new JButton("取消");
public void init() {
myframe.setSize(300, 200);
myframe.getContentPane().setLayout(null);
myframe.setTitle("java 小程序");
label1.setBounds(20, 20, 120, 27);
label2.setBounds(20, 40, 120, 27);
button1.setBounds(20, 60, 60, 27);
button2.setBounds(100, 60, 60, 27);
button1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
label1.setText("你点了确定");
}
});
button2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
label2.setText("你点了取消");
}
});
myframe.add(label1);
myframe.add(label2);
myframe.add(button1);
myframe.add(button2);
myframe.show();
}
public static void main(String[] args) {
new Test().init();
}