java 实际 问题
来源:百度知道 编辑:UC知道 时间:2024/06/05 10:12:44
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.Document;
import javax.swing.text.PlainDocument;
public class Test extends JFrame {
private static final long serialVersionUID = 1L;
private JTextField txt;
private JTextField txtArea;
public static void main(String args[]) {
try {
Test frame = new Test();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
public Test() {
super();
setResizable(false);
setTitle("Test");
getContentPane().setLayout(null);
setBounds(100, 100, 300, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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