java ----- 模拟登陆弹出对话框

MyLogin.java

public class Test_Login {
public static void main(String arge[]){
	MyLogin l =new MyLogin("zxl","123");
	l.login();
}
}

Test_Login.java

import javax.swing.JOptionPane;

public class MyLogin {

	private String admin_userName;
	private String admin_passWord;

	public MyLogin() {
		this.admin_userName = "admin";
		this.admin_passWord = "admin";
	}

	public MyLogin(String admin_userName, String admin_passWord) {
		this.admin_userName = admin_userName;
		this.admin_passWord = admin_passWord;
	}

	public String getAdmin_userName() {
		return admin_userName;
	}

	public void setAdmin_userName(String admin_userName) {
		this.admin_userName = admin_userName;
	}

	public String getAdmin_passWord() {
		return admin_passWord;
	}

	public void setAdmin_passWord(String admin_passWord) {
		this.admin_passWord = admin_passWord;
	}

	public void login() {
		String strU = "请输入您用户名:";
		String strP = "请输入您的密码:";
		int num = 0;

		for (int i = 1; i <= 10; i++) {
			if (this.admin_userName.equals(JOptionPane.showInputDialog(strU)) && this.admin_passWord.equals(JOptionPane.showInputDialog(strP))) {
				JOptionPane.showMessageDialog(null, "Success!");
				String choice = JOptionPane.showInputDialog(" 是否修改账户及密码？  (是：  1              否：2)");
				num = 0; // 将记录连续出错的变量清零
				if (choice.equals("1")) {
					this.setAdmin_userName(JOptionPane.showInputDialog(strU));
					JOptionPane.showMessageDialog(null, "账户修改成功！ ");
					this.setAdmin_passWord(JOptionPane.showInputDialog(strP));
					JOptionPane.showMessageDialog(null, "密码修改成功！");
					choice = null;
				}

				choice = JOptionPane.showInputDialog(" 是否继续操作？  (是：  1              退出：2)");

				if (choice.equals("1")) {
					continue;
				} else {
					System.exit(0);
				}
			} else {
				num++;
				if (num <= 2) {
					JOptionPane.showMessageDialog(null, "用户名或密码输入错误!请重新输入!");
				} else {
					JOptionPane.showMessageDialog(null, "连续输错用户名或密码，退出系统！ ");
					System.exit(0);
				}
			}
		}
	}
}