xx22.java

来自「两种方法实现大小写的相互转换」· Java 代码 · 共 33 行

package exam1;
import java.awt.*;
import java.awt.event.*;

public class XX22 implements ActionListener{
	private Label l1 = new Label("请输入单词：");
	private Label l2 = new Label("大写的单词为：");
	private TextField t1 = new TextField(16);
	private TextField t2 = new TextField(16);
	private Button b1 = new Button("大写");
	private Frame fm = new Frame("大小写转换窗口");

	public XX22(){
		fm.setLayout(new FlowLayout());
		fm.setBounds(0,0,600,100);
		l1.setForeground(Color.green);
		l2.setForeground(Color.red);
		t2.setForeground(Color.blue);
		fm.add(l1);
		fm.add(t1);
		fm.add(b1);
		fm.add(l2);
		fm.add(t2);
		b1.addActionListener(this);
		fm.setVisible(true);
	}
	public void actionPerformed(ActionEvent e){
		t2.setText(t1.getText().toUpperCase());
	}
	public static void main(String[] args){
		XX22 x = new XX22();
	}
}