Sub: I need help urgently.

Hire a consultant.

Use a JPasswordField.

The 'standard way' to pass an exam is to study for it,
rather than come to usenet and ask for 'codes'.

Sure thing.

Andrew T.

How the **** are we supposed to know what's in your syllabus? And you'd get
better help if you put something useful in the subject line.

If you're writing a console app, read a character from the input stream and
print an asterisk to the output stream; repeat until you get an end of
line character. Something like (untested):

public String getPassword( InputStream in, OutputStream out, String prompt)
{
       StringBuffer passBuff = new StringBuffer();
       boolean done = false;

       out.print( prompt);

       while ( ! done)
       {
               int c = in.read();

               switch ( c)
               {
                       case -1: /* EOF */
                       case '\n':
                       case '\r':
                       /* and any other characters you see as terminating */
                               out.println();
                               done = true;
                               break;
                       default:
                               passBuff.append( ( char)c);
                               out.print( '*');
                               break;
               }
       }

       return passBuff.toString();
}

The while loop here may lose you marks for style; you should probably
recode it as a for loop. I used while primarily to make it clearer.

In a text console on any unix-like platform (you didn't specify
yours), you can do this to prevent the input from being displayed
while the password is entered:

http://groups.google.com/group/comp.lang.java.programmer/msg/a132c7feda18187a

If you want to display asterisks, you need to set "-icanon min 1" to
get character-at-a-time input, and do System.out.print("*") for each
character as it's typed.

/gordon