Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Java Java Arrays Iteration Looping Like These Programmers

Java array

public class Programmers {

public void printMenu() { String[] programmers = { "Yukihiro Matsumoto", "David Nolen", "Grace Hopper", "Linus Torvalds", "You" };

System.out.println("Choose a programmer:");
// TODO: Print out a menu by looping through the programmers array.
/*
  The menu should be in the form of (each on a line of its own, starting with 1):
  1. Yukihiro Matsumoto
  2. David Nolen
  ...
*/
for ( int i = 0 ; i < programmers.length; i++)
{
  String [] programmer = programmers[i] ;
  System.out.printf(" Hey all of them");
}

}

}

1 Answer

Simon Coates
Simon Coates
4,968 Points

it accepts

public class Programmers {

  public void printMenu() {
    String[] programmers = {
            "Yukihiro Matsumoto",
            "David Nolen",
            "Grace Hopper",
            "Linus Torvalds",
            "You"
    };

    System.out.println("Choose a programmer:");
    // TODO: Print out a menu by looping through the programmers array.
    /*
      The menu should be in the form of (each on a line of its own, starting with 1):
      1. Yukihiro Matsumoto
      2. David Nolen
      ...
    */
    for(int i = 0; i < programmers.length; i++){
       System.out.println((i+1)+" "+programmers[i]);
    }
  }
}

There are other minor variants of the loop, such as:

   for(int i = 0; i < programmers.length; i++){
      int adjustedIndex = i+1;
      String programmer = programmers[i];
      System.out.println(adjustedIndex+" "+programmer);
    }

or

    for(int i = 0; i < programmers.length; i++){
      int adjustedIndex = i+1;
      String programmer = programmers[i];
      System.out.println(String.format("%x %s", adjustedIndex, programmer));
    }

In reference to your code, the variable type for programmer should be String rather than String[]. And using printf rather than println would probably require that you provide the line end.