Function Home Work 3rd exercise

package HWPres5;
import java.util.Scanner;

public class array3Val {

	//This function receive two array of type integer and merge them to get a third one
	//has the same values with a count for the number that match.
		   public static int[] mergetwoArray (int[] arrOne, int[] arrTwo){

			int [] equals = new int[Math.min(arrOne.length, arrTwo.length)];
	        int count=0;

	        for(int i:arrOne){
	            for(int j: arrTwo){
	                if(i==j){ // if the values in index are equal, Array Equals created
	                 equals[count]=i;
	                 count+=1;
	                }
	            }
	        }
	        return makeThird(equals,count);
	        //call for make new function to create an array of the proper length
	        // the count allow me to only add the right values no empty indexs
     	    }

	    // Function that gets an array and the number of items in it
	   public static int[] makeThird (int[] arrOne,int howMany){

	        int[] merged= new int[howMany];
	        for(int i=0; i<howMany; i+=1){
	            merged[i]=arrOne[i];
	        }
	           return merged; // Return a third array with only the values equal to count
	        }


      //This function gets an array and converts it to Sting array
	   public static String intToString (int[] merged){
            String str="";
             for(int i: merged){
                 str+=i+" ";
             }
             return str;
       }


       public static void main(String[] args) {
   		Scanner scan = new Scanner(System.in);

   		//Created 3 arrays of type integer and intilized their size to be
   		//allow future changes int change control the size
   		   int elements1=0, elements2=0, elements3=0;
           int[] arr3 = new int[elements3];

           System.out.printf(" Please, Enter the Numbers of elements in your FIRST array? ", elements1);
           elements1 = scan.nextInt();
           int[] arrOne= new int[elements1] ;

         //Read the prompted values into the Arrays
           System.out.printf(" Please, Enter %d Elements in your First Array:%d", elements1,arrOne.length);
   			for (int i = 0; i < arrOne.length; i++) {
   			arrOne[i] = scan.nextInt();}


           System.out.printf(" Please, Enter the Numbers of Elements in your SECOND array? ", elements2);
           elements2 = scan.nextInt();
           int[] arrTwo= new int[elements2];

  			System.out.printf(" Please, Enter %d Elements in Second Array:%d ",elements2,arrTwo.length);
  			for (int j = 0; j < arrTwo.length; j++){
  			arrTwo[j] = scan.nextInt();


   			}

   			  			// creates the third array by calling function mergeTwoArray
   			 arr3 = mergetwoArray(arrOne, arrTwo); // create a third array arr3 with equal digits in arr1 and arr2
   			 System.out.println(" The Digits Equal in both arrays after the merge are "+intToString(arr3));
   			 // After calling Function convert integer to String
   			 //print the third array with the results if any!
   			}

}