Return an array of Pairs which have the same length as the input array of Strings. (Java) -

i want create class return array of pairs have same length input array of strings. in addition, pair should have first letter of string , length of string.

for example; create(new string[] {"clue", "yay", "neon", "halala"}) should return array of pairs {[’c’,4],[’y’,3],[’n’,4],['h',6]}

so, input , output both arrays. output has in form of pair. here's tried:

import java.util.arrays;    public class couple {   public static couple[] create(string[] source){          (int = 0; < source.length; i++) {              system.out.print("["+","+source.length+"]") ;         }         return null;      }                  public static void main(string[] args) {         system.out.println(arrays.tostring(create(new string[] {"clue", "yay", "neon", "halala"})));      }  } 

as it's obvious there few errors+ dont want return null. sake of testing code, had it. ideas?

public class couple {      private char firstchar;     private int length;      public couple(char firstchar, int length) {         this.length = length;         this.firstchar = firstchar;     }      public static couple[] create(string[] source) {         couple[] couples = new couple[source.length]; // create array hold return pairs          (int = 0; < source.length; i++) {             string entry = source[i];             if (entry != null) {                 couples[i] = new couple(entry.charat(0), entry.length());             } else {                 // want if there's null value?                 // until answer we'll leave corresponding couple null aswell             }         }          return couples;     }      @override     public string tostring() {         return "couple{" +                 "firstchar=" + firstchar +                 ", length=" + length +                 '}';     } }