How to read password from the console

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How to read password from the console
Posted on: April 10, 2010 at 12:00 AM

This tutorial demonstrate how to read password without showing it on the console

Description:

Console class was introduced in jdk 1.6. This class help in taking the input from the console using its readPassword method . Here in this sample program it will ask to feed the password. Note it will accept the password without showing it.

Code:


import java.io.Console;



public class ConsoleExample2 {

  public static void main(String args[]) {

    Console con;

    char[] password;

    if ((con = System.console()) != null

        && (password = con.readPassword("[%s]", "Enter password:")) != null) {

      java.util.Arrays.fill(password, ' ');

    }

  }

}

Output:

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