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  1. Prepare
  2. Tutorials
  3. 30 Days of Code
  4. Day 6: Let's Review
  5. Discussions

Day 6: Let's Review

  • donal_dsilva
     + 2 comments

    Thank you so much I was struggling for nearly two days as my code was working in netbeans but I had NO idea how to get whatever input HackeRank was sending out. Here's my version, a bit more verbose than yours. Really like the logic you used:

    public static void main(String[] args) {
       Scanner in = new Scanner(System.in);
       // Set the iteration for number of test cases
       int t = in.nextInt();
        
        for(int i = 0; i < t; i++){
            // String variables to contain the build up of letters and final result
            String evenStr = "", oddStr = "", finalOutput = "";
            
            // Get characters at each position and check whether 0, even or odd and 
            // create new string based on previous values plus current one
            String input = in.next();
            for(int j = 0; j < input.length(); j++){
                if(j == 0 || j % 2 == 0){
                    evenStr += input.charAt(j);
                } else if (j % 2 != 0){
                    oddStr += input.charAt(j);
                }
             // Concatenate even positions + space + odd positions
                finalOutput = evenStr + " " + oddStr;
                
            }
            // Print final result per test run
            System.out.println(finalOutput);
            
        }
         
        
    }