Q) Randomly shuffle the elements of an array
Example
Original Array: 2,5,1,7,8,2
Output 1:
5 2 8 1 2 7
Output 2:
5 1 8 2 2 7
package Array;
/**
* Created by aarushi on 24/4/21.
*/
public class ArrayRandomShuffle {
public static void randomShuffle (int [] array){
for (int i=array.length-1; i>=0; i--){
//randomly generate an index from 0 to i
int randIndex= (int)(Math.random()*i);
//swap elements
int temp= array[i];
array[i]=array[randIndex];
array[randIndex]= temp;
}
}
public static void main (String [] args){
int [] array= {2,5,1,7,8,2};
randomShuffle(array);
for (int i=0; i<array.length; i++){
System.out.print(array[i]+ " ");
}
}
}