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Java Java Basics Perfecting the Prototype Looping until the value passes

Jonathan Hector
Jonathan Hector
5,225 Points
Posted by Jonathan Hector
Jonathan Hector
5,225 Points

Do while loop in Java n working

After doing it multiple times, my 'do while' loop still doesn't want to work.

Example.java 
// I have initialized a java.io.Console for you. It is in a variable named console.

String response;
boolean ask;
     do {
  response = console.readLine("Do you understand do while loops? \n");
  ask.equalsIgnoreCase("no");
 if (ask){
   console.printf("Try again!");
                  }
       while (ask);
}
Salomon Orrego Martinez
Salomon Orrego Martinez
9,137 Points
Salomon Orrego Martinez
Salomon Orrego Martinez
9,137 Points

You have a problem trying to get the value for the variable ask, the equalsIgnoreCase() is a method you can use with the String response you have and it will return a boolean value, you need to fix it like these (order is also good for cheching code):

// I have initialized a java.io.Console for you. It is in a variable named console.

 String response;
 boolean ask;
 do {
        response = console.readLine("Do you understand do while loops? \n");
        ask=response.equalsIgnoreCase("no");
        if (ask){
          console.printf("Try again!");
        }while (ask);

}

the response.equalsIgnoreCase("no") returns a boolean value that is stored in the variable ask

I hope I helped a little

2 Answers

Nick Oman
Nick Oman
11,093 Points

Hi Jonathan,

This code worked for me. The boolean isn't necessary for the loop because we're evaluating based on the "no" answer. 

String response = console.readLine("Do you understand loops? ");

do{
response = console.readLine("Do you understand do while loops?");
}while(response.equalsIgnoreCase("no"));

console.printf("Because you said %s, you passed the test!",response);
Jonathan Hector
Jonathan Hector
5,225 Points
Jonathan Hector
Jonathan Hector
5,225 Points

Thanks Nick Oman. I tried it and it worked.