### Program to Sort Binary array(Array of 0 and 1 only) in java

In this core java programming tutorial we will Write a Program to Sort Binary array(Array of 0 and 1 only) in java.

Example 1 in java >
Binary array before sorting : 10100101
Binary array after sorting  : 00001111

Example 2 in java >
Binary array before sorting : 101101010
Binary array after sorting  : 000011111

Example/ Full Program/SourceCode to Sort Binary array(Array of 0 and 1 only) in java >
 /** Copyright (c), AnkitMittal JavaMadeSoEasy.com */ public class SortBinaryArrayExample {    public static void main(String[] args) {           int ar[] = { 1, 0, 1, 0, 0, 1, 0, 1 };           System.out.print("Binary array before sorting : ");           for (int n : ar)                  System.out.print(n);                     //i will start from 0.           //j will start from end.           int i = 0, j = ar.length - 1;                     //We might face 4 conditions.           while (i < j) {                  //condition 1 - when a[i] is 1 and a[j] is 0                  if (ar[i] > ar[j]) {                        ar[i] = 0;                        ar[j] = 1;                        i++;                        j--;                  }                  //condition 2 - when a[i] is 0 and a[j] is 0                  else if (ar[i] == 0 && ar[j] == 0) {                        i++;                  }                  //condition 3 - when a[i] is 1 and a[j] is 1                  else if (ar[i] == 1 && ar[j] == 1) {                        j--;                  }                  //condition 4 - when a[i] is 0 and a[j] is 1                  else if (ar[i] < ar[j]) {                        i++;                        j--;                  }           }           System.out.print("\nBinary array after sorting  : ");           for (int n : ar)                  System.out.print(n);    } } /* Output Binary array before sorting : 10100101 Binary array after sorting  : 00001111 */

So in this core java programming tutorial we wrote a Program to Sort Binary array(Array of 0 and 1 only) in java.

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