textdemo.java

学习参考,java基本语法练习,包括一些常用的技巧

/*
 *该示例演示了JTextFieldJ,JPasswordField的使用
 */
import java.awt.*;
import javax.swing.*;
public class TextDemo extends JFrame
{
	JTextField	lblName,lblPassword;
	JTextField	txtName;
	JPasswordField pwdPassword;
	JPanel pnlMain;
	public TextDemo()
	{
		lblName=new JTextField("用户名:");
		txtName=new JTextField(16);
		lblPassword=new JTextField("密  码:");
		pwdPassword=new JPasswordField(16);
		pwdPassword.setEchoChar('*');
		lblName.setEditable (false);
		lblPassword.setEditable (false);
		pnlMain=new JPanel();
		pnlMain.add(lblName);
		pnlMain.add(txtName);
		pnlMain.add(lblPassword);
		pnlMain.add(pwdPassword);
		this.setContentPane(pnlMain);
		setTitle("文本框和密码框演示");
		setSize(250,150);
		setVisible(true);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
	}
	public static void main(String args[])
	{
		TextDemo td=new TextDemo();
	}
}