text.java

来自「java课程的资料以及实验的代码」· Java 代码 · 共 32 行

import java.awt.*;
import java.awt.event.*;

class text extends Frame
{
	TextField tf1;
	TextField tf2;
	public text()
	{
		tf1=new TextField();
		tf2=new TextField();
		setLayout(new GridLayout(2,1));
		add(tf1);
		add(tf2);
		myTextListener myText=new myTextListener();
		tf1.addTextListener(myText);
		//tf1.addTextListener(new myTextListener());
	}
	private class myTextListener implements TextListener
	{
		public void textValueChanged(TextEvent e)
		{
			tf2.setText(tf1.getText());
		}
	}
	public static void main(String args[])
	{
		text myFrame=new text();
		myFrame.setSize(200,100);
		myFrame.setVisible(true);
	}
}