Java Console readPassword() Example

Console class readPassword() method example. This example shows you how to use readPassword() method.


Syntax is : public char[] readPassword(String fmt, Object... args)
This method provides a formatted prompt, then reads a password or passphrase from the console with echoing disabled.

Here is the code.

/**
 * @(#) ReadPassword1Console.java
 * A class representing use of method readPassword() of Console class in 
java.io Package.
 * @Version  11-June-2008
 @author   Rose India Team
 */
import java.io.*;

public class ReadPassword1Console {

    public static void main(String[] args) {

        //Create a console object.
        Console objConsole = System.console();
        if (objConsole == null) {
            System.err.println("Console Object is not available.");
            System.exit(1);
        else {
            String PASS_PROMPT = "%1$4s %2$4s %3$8s%n";

            // readPassword method call.
            char[] pwdArray = objConsole.readPassword(PASS_PROMPT, "Enter",
                    "user""Password :");
            System.out.print("You have entered password : ");
            System.out.println(pwdArray);
        }
    }
}

Output of the program.
 Enter user Password :

You have entered password : mahendra

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