Theres more too it than that bud. Follow the logic. You're saying everything that's not 0 and divisable by 3 is Java.

What about Coffe, CoffeeScript, and Javascript?

if (n != 0) {
      if (n%3==0 && n%4 != 0) {
        if(n%2==0)  {
          return "JavaScript";
        }
        else {
          return "Java";
        }
      
      }  // not devis 4
      
      else if (n%3==0 && n%4==0) {
        if(n%2==0) {
          return "CoffeeScript";
        }
        else {
          return "Coffee";
        }
        
      } // devise form  
          
    } // MAIN IF
    
    
    return "mocha_missing"; // ELSE!!!!!!!!!!!!!!!!!!

I am having the same problem. Solved it in Python, but for the life of me the test cases for Java are not lining up with how I would assume a "best practice" solution would look like.

you idiot, come my sit. -- 원익 이순신