Java Array Exercises: Move all 0's to the end of an array

Java Array: Exercise-26 with Solution

Write a Java program to move all 0's to the end of an array. Maintain the relative order of the other (non-zero) array elements.

Pictorial Presentation:

Sample Solution:

Java Code:

import java.util.*;
 public class Exercise26 {
     public static void main(String[] args) throws Exception {
        int[] array_nums = {0,0,1,0,3,0,5,0,6};
         int i = 0;
		System.out.print("\nOriginal array: \n");
		for (int n : array_nums)
            System.out.print(n+"  ");
		
        for(int j = 0, l = array_nums.length; j < l;) {
            if(array_nums[j] == 0)
                j++;
            else {
                int temp = array_nums[i];
                array_nums[i] = array_nums[j];
                array_nums[j] = temp;
                i ++;
                j ++;
            }
        }
        while (i < array_nums.length)
            array_nums[i++] = 0;
		System.out.print("\nAfter moving 0's to the end of the array: \n");
        for (int n : array_nums)
            System.out.print(n+"  ");
			System.out.print("\n");
    }
}

Sample Output:

                                                                              
Original array:                                                        
0  0  1  0  3  0  5  0  6                                              
After moving 0's to the end of the array:                              
1  3  5  6  0  0  0  0  0 

Flowchart:

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