Java Array Exercises: Segregate all 0s on left side and all 1s on right side of a given array of 0s and 1s
Java Array: Exercise-42 with Solution
Write a Java program to segregate all 0s on left side and all 1s on right side of a given array of 0s and 1s.
Pictorial Presentation:
Sample Solution:
Java Code:
import java.util.*;
import java.lang.*;
public class Main
{
public static void main (String[] args)
{
int nums[] = {0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1};
int i, nums_size = nums.length;
int left = 0, right = nums_size - 1;
System.out.println("Original Array : "+Arrays.toString(nums));
while (left < right)
{
/* While 0 at left increment left index */
while (nums[left] == 0 && left < right)
left++;
/* While we see 1 at right decrement right index*/
while (nums[right] == 1 && left < right)
right--;
if (left < right)
{
nums[left] = 0;
nums[right] = 1;
left++;
right--;
}
}
System.out.println("Array after segregation is : "+Arrays.toString(nums));
}
}
Sample Output:
Original Array : [0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1] Array after segregation is : [0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1]
Flowchart:
Visualize Java code execution (Python Tutor):
Java Code Editor:
Improve this sample solution and post your code through Disqus
Previous: Write a Java program to find smallest and second smallest elements of a given array.
Next: Write a Java program to find all combination of four elements of an given array whose sum is equal to a given value.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
Java: Tips of the Day
How to sort an ArrayList?
Collections.sort(testList); Collections.reverse(testList);
That will do what you want. Remember to import Collections though!
Ref: https://bit.ly/32urdSe
- New Content published on w3resource:
- HTML-CSS Practical: Exercises, Practice, Solution
- Java Regular Expression: Exercises, Practice, Solution
- Scala Programming Exercises, Practice, Solution
- Python Itertools exercises
- Python Numpy exercises
- Python GeoPy Package exercises
- Python Pandas exercises
- Python nltk exercises
- Python BeautifulSoup exercises
- Form Template
- Composer - PHP Package Manager
- PHPUnit - PHP Testing
- Laravel - PHP Framework
- Angular - JavaScript Framework
- Vue - JavaScript Framework
- Jest - JavaScript Testing Framework