Thread: replacing elements in a string

I changed the post in the wrong section and posted it here.

I'm trying to encrypt a string when you enter a phrase into the program. The following code compiles with no errors but it doesn't change the a when its there to "00". The phrase is printed out again telling me that the if statement is working but its not replacing it and I have no idea how to fix this. This is just a fun project for me but this is really frustrating me...

		input.getUserInput(choice);
 
		if (input.input.equals("1")) {
 
			pdphrase = input.getUserInput(dphrase);
 
			if (pdphrase.contains("a")) {
 
				pdphrase.replaceAll("a", "00");
 
			        System.out.println(pdphrase);
 
 
			}		
 
		}

P.S. dphrase means decrypted phrase and pdphrase means post decryption phrase.

try

pdphrase = pdphrase.replaceAll("a", "00");

Wow... ...Thanks!