Java Array Exercises: Shuffle a given array of integers
Java Array: Exercise-60 with Solution
Write a Java program to shuffle a given array of integers.
Example:
Input :
nums = { 1, 2, 3, 4, 5, 6 }
Output:
Shuffle Array: [4, 2, 6, 5, 1, 3]
Sample Solution:
Java Code:
import java.util.Arrays;
import java.util.Random;
class solution
{
public static void shuffle(int nums[])
{
for (int i = nums.length - 1; i >= 1; i--)
{
Random rand = new Random();
int j = rand.nextInt(i + 1);
swap_elements(nums, i, j);
}
}
private static void swap_elements(int[] nums, int i, int j) {
int temp = nums[i];
nums[i] = nums[j];
nums[j] = temp;
}
public static void main (String[] args)
{
int[] nums = { 1, 2, 3, 4, 5, 6 };
System.out.println("Original Array: "+Arrays.toString(nums));
shuffle(nums);
System.out.println("Shuffle Array: "+Arrays.toString(nums));
}
}
Sample Output:
Original Array: [1, 2, 3, 4, 5, 6] Shuffle Array: [4, 2, 6, 5, 1, 3]
Flowchart:
Java Code Editor:
Improve this sample solution and post your code through Disqus
Previous: Write a Java program to find maximum product of two integers in a given array of integers.
Next: Write a Java program to rearrange a given array of unique elements such that every second element of the array is greater than its left and right elements.
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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
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