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Java Java Basics Perfecting the Prototype Looping until the value passes

Nancy Melucci
PLUS
Nancy Melucci
Courses Plus Student 36,143 Points

Hard to read this version of Java, can't pass challenge

I really love this and all Treehouse tutorials. But I am used to starting my programs with public static void main(String[] args) { and not used to the console.printf version this tutorial is using (System.out.println.();). It's harder for me to read the code and I can't use my IDE (NetBeans) to test before doing the challenges. Anyway...why can't I make my challenge answer pass....I've compared this with various online Java sources for the do/while structure.

String who;
do {
console.printf("Knock Knock.\n");
String who = console.readLine("Who's there?  ");
console.printf("%s who?\n", who);
} while(who.equalsIgnoreCase("banana"));
}

2 Answers

You have an extra closing curly brace after the while conditional that you don't need. Also, when you modify the who variable inside of the do-while loop, you don't need to place its type before its name, as you've already defined that variable. :)

String who;

do {

  console.printf("Knock Knock.\n");

  // Person B asks and Person A's response is stored in the String who:
 who = console.readLine("Who's there?  ");

  // Person B responds:
  console.printf("%s who?\n", who);

} while (who.equalsIgnoreCase("banana"));
Nancy Melucci
PLUS
Nancy Melucci
Courses Plus Student 36,143 Points

Thanks....every version I've seen has a closing brace....but, I removed those two things and it worked great.

It does have a closing brace, but that brace comes after the do block:

do {

  console.printf("Knock Knock.\n");

  // Person B asks and Person A's response is stored in the String who:
  who = console.readLine("Who's there?  ");

  // Person B responds:
  console.printf("%s who?\n", who);

} // <-- there's the brace

Anyways, glad I could help! Happy coding! :)