JAVA method of randomly shuffling array order

This article illustrates a JAVA method for randomly shuffling arrays. Share with you for your reference. The specific implementation method is as follows:

import java.util.Random;    

    

public class RandomSort {    

    private Random random = new Random();    

    //Array size & NBSP;     < br / >
    private static final int SIZE = 10;    

    //Array & PI to be reordered;     < br / >
    private int[] positions = new int[SIZE];    

        

    public RandomSort() {    

        for(int index=0; index<SIZE; index++) {    

            //Initializes the array with the index as the element value & NBSP;     < br / >
            positions[index] = index;    

        }    

        //Print out the value of the array sequentially & NBSP;     < br / >
        printPositions();  

    }    

        

    //Reorder       < br / >
    public void changePosition() {    

        for(int index=SIZE-1; index>=0; index--) {    

            //You take a random value from 0 to index, and you swap & PI with the element at index;     < br / >
            exchange(random.nextInt(index+1), index);    

        }    

        printPositions();    

    }    

        

    //Swap places & NBSP;     < br / >
    private void exchange(int p1, int p2) {    

        int temp = positions[p1];    

        positions[p1] = positions[p2];    

        positions[p2] = temp;  //A better place & NBSP; < br / >
    }    

        

    //Print the value of the array & NBSP;     < br / >
    private void printPositions() {    

        for(int index=0; index<SIZE; index++) {    

            System.out.print(positions[index]+" ");             

        }    

        System.out.println();    

    }    

    

    public static void main(String[] args) {    

        RandomSort rs = new RandomSort();    

        rs.changePosition();    

        rs.changePosition();    

        rs.changePosition();    

    }    

}

I hope this article has been helpful to your Java programming.