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Java Java Basics Perfecting the Prototype Looping until the value passes

huseyin ozyay
huseyin ozyay
1,417 Points

JavaTester.java:124: error: incompatible types: String cannot be converted to boolean } while (response); ^

I tried everythig but I still have that error. Could you please help me

Example.java
// I have initialized a java.io.Console for you. It is in a variable named console.
String response= console.readLine("Do You understand do while loops");
do {
  if (response.equals("No")){
    console.printf("Do You understand do while loops");
  }
} while (response);
//console.printf("%s");

3 Answers

Simon Coates
Simon Coates
28,692 Points

take a look at

String response; 
do {
  response= console.readLine("Do You understand do while loops");
} while (response.equals("No"));

the first problem is that the syntax requires something like while(condition). The value or expression that replaces the word condition needs to evaluate to a boolean. response is a string - hence the type mismatch.

huseyin ozyay
huseyin ozyay
1,417 Points

thank you simon. it works well. I changed the structure according to your advice.