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Java Java Basics Perfecting the Prototype Looping until the value passes

Posted by shiny peanut
shiny peanut
5,113 Points

Loop Confusion

I'm a bit confused about how to best answer this question. Is it necessary to create a second variable? Am I misunderstanding the logic/flow of control for this problem? Any help is appreciated.

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 while loops? \n\n");
boolean answer;
do {
  response = console.readLine("Do you understand while loops? \n\n");
  answer = (noun.equalsIgnoreCase("no"));

  if (answer) {
    console.printf("Okay. \n\n");
  }
} while(answer);

2 Answers

Henrik Christensen
seal-mask
.a{fill-rule:evenodd;}techdegree
Henrik Christensen
Python Web Development Techdegree Student 38,322 Points
Henrik Christensen
.a{fill-rule:evenodd;}techdegree
Henrik Christensen
Python Web Development Techdegree Student 38,322 Points

You don't need to have this line outside of the do-block because the variable is only used inside the do-block

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

Also, this line would cause some kinda problem I guess, because the variable noun has not been declared anywhere

answer = (noun.equalsIgnoreCase("no"));
Philip Schultz
Philip Schultz
11,437 Points
Philip Schultz
Philip Schultz
11,437 Points

I see a couple things that need fixing. You should just initialize the variable 'response' outside the do-while loop (set it equal to an empty string). You are asking for the input correctly within the loop, but you are testing some variable name 'noun' that doesn't exist. You want to test the response variable. See the code below on how I solved the task and let me know if you have any questions. 

// I have initialized a java.io.Console for you. It is in a variable named console.
String response = "";
boolean tester = true;
do{
response = console.readLine("Do you understand do while loops?");
  if (response != "No"){
        tester = false;
  }

} while (tester);

console.printf("Because you said %s, you passed the test", response);