JOSH:Merge two sorted array(first in asc,second dec) into array in ascending order

Solution:
 Merge two sorted array into new sorrted array
input A 1,2,3,4,5(asc)
input B 10,9,8,7,6(dec)
output 1,2,3,4,5,6,7,8,9,10(asc)

package array;

/* merge two sorted array into new sorrted array*/

public class Merge2array {
 public int arr1[];
 public int arr2[];
 public int newarr[];

 public Merge2array(int arr1[], int arr2[]) {

  int i = 0, j = 0;
  this.arr1 = new int[arr1.length];
  this.arr2 = new int[arr2.length];
  for (int a : arr1) {
   // System.out.print(a + " ");
   this.arr1[i++] = a;
  }

  for (int b : arr2) {
   // System.out.print(b + " ");
   this.arr2[j++] = b;
  }

  this.newarr = new int[arr1.length + arr2.length];
  merge();
 }

 public void merge() {
  int i = 0, k = 0;
  int j = arr2.length - 1;

  while (arr1.length + arr2.length - 1 > k) {
   if (arr1[i] < arr2[j])
    newarr[k++] = arr1[i++];
   else
    newarr[k++] = arr2[j--];
   if (i == arr1.length)
    for (; j >= 0;)
     newarr[k++] = arr2[j--];
   else if (j < 0)
    for (; i < arr1.length;)
     newarr[k++] = arr1[i++];

  }
 }

 @Override
 public String toString() {
  StringBuilder s = new StringBuilder();
  // System.out.println();
  for (int a : newarr)
   s.append(a + ",");
  return s.toString();

 }

 public static void main(String[] args) {
  int a[] = { 1, 8, 18, 28, 50 };
  int b[] = { 51, 27, 2, 1 };

  System.out.println(new Merge2array(a, b));

 }

}

OUTPUT:
1,1,2,8,18,27,28,50,51,