Console based login : Console « Development « Java Tutorial

1. Java Tutorial
2. Development
3. Console

import java.io.Console;

public class Login {
  public static void main(String[] args) throws Exception {
    Console console = System.console();
    String username = console.readLine("Username:");
    char[] pwd = console.readPassword("Password:");

    System.out.println("Username = " + username);
    System.out.println("Password = " + new String(pwd));

    username = "";
    for (int i = 0; i < pwd.length; i++)
      pwd[i] = 0;
  }
}