Thread: Continuously get user's input until an empty string is entered

Hi, even when I do the comparison :

if(name.equals(" ")) break;

It still doesn't get out of the loop.

That's not an empty String, that's a String with a space in it.
Do:

if(name.trim().equals(""))

name.trim() will remove any leading or trailing spaces, and "" is an empty String. So this will evaluate to true if the String is empty or just a space.

When I tried this..the programme still keeps running in the loop for a while..before breaking out of the loop. How can I modify the code in such a way that immediately I enter "" in the input, the programme exits the while loop and goes to the next statement:

System.out.println("you are out of the while loop now!!");

 
               System.out.println("Enter your name : \n");
		Scanner st = new Scanner(System.in);
		while(st.hasNext()){
			System.out.println("Enter your name : \n");
			String name = st.nextLine();
                        System.out.println(name);
                        if(name.trim().equals("")) break;
			}
         System.out.println("you are out of the while loop now!!");

Try putting the "if" expression at the top of the loop so it
is executed/checked against before any of the loop code is
executed. Also, place the expression in braces so it belongs
in it's own field of scope.

If none of these work then you are going to have to re-write your
continuation condition of the said loop - so it will only execute when
valid input is entered before the loop is reached.

Wishes Ada xx