Answers for "how to make random 10 in array java"

how to select a random element from an array in java

import java.util.Random;

public class RandomStringFromArray
{    
  	public static void main(String[] args)    
    {        
      	String[] arr={"1", "2", "3", "4", "5"};
      	Random r=new Random();        
      	int randomNumber=r.nextInt(arr.length);
      	System.out.println(arr[randomNumber]);
    }
}

java get random index from array

private int getRandomIndex(int arrayLength) {
  Random r = new Random();
  return r.nextInt(arrayLength);
}