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How to read password from the console

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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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Posted on: April 10, 2010 If you enjoyed this post then why not add us on Google+? Add us to your Circles

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