Question

用JAVA写个程序，在同一个窗口把输入的内容按确定输出，怎么写？

如题，简单易懂的程序。

Answer 1

import java.awt.*;
import java.awt.event.*;
public class TestTextField {
public static void main(String[] args) {
MyTestField mtf = new MyTestField();
}
}
class MyTestField extends Frame {
TextField tf1,tf2;
MyTestField() {
super("test");
tf1 = new TextField(10);
tf2 = new TextField(10);
Button b1 = new Button("确定");
b1.addActionListener(new Monitor());
Label lb1 = new Label("输入");
Label lb2 = new Label("输出");
add(lb1);add(tf1);add(b1);add(lb2);add(tf2);
pack();
setLayout(new FlowLayout());
setSize(200,200);
setVisible(true);
}

class Monitor implements ActionListener {
public void actionPerformed(ActionEvent e) {
tf2.setText(tf1.getText());
tf1.setText("");
}
}

}