CODEWITHSUNDEEP
javaloopsmethodswhile-loop
Dave Spell
Dave Spell

Reputation: 1

I am having a do while loop issue. Can anyone tell me why this is not working?

The code below is supposed to ask the user to enter start into the console and then if the user hits start "Let's begin" if not, "Wrong word entered" is printed and the method loops itself. 

do { 
    System.out.println("Type start to play");
    String word = lineReader.nextLine();
    String word2 = ("start");
    boolean valid;

    valid =(word.equals (word2)); 

    if (valid){
        System.out.println("Let's begin");
    } else {
        System.out.println("Wrong Word Entered");
    }
} while (!valid);

Upvotes: 0

Views: 57

Answers (1)

Andy Turner
Andy Turner

Reputation: 140494

The problem is that you declare valid inside the loop, so you can't use it in the while (!valid) condition.

The variable is only visible to inside the do/while loop if you declare it there (this is called the variable's "scope").

Move boolean valid before the do:

boolean valid;
do {
  // Code which assigns true or false to valid.
} while (!valid);

Upvotes: 4

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