Question

I need help wrting a java program that creates an array with 20 randomly chosen integers. The program should prompt the user for an index of the array and display the corresponding element value. If the specified index is out of bounds,display the message "Out of Bounds".

Answer 1

import java.util.Random;
import java.util.Scanner;
public class TestCode {
    public static void main(String args[]){
        Random random = new Random();
        int arr[] = new int[20];
        for(int i = 0;i<arr.length;i++){
            arr[i] = random.nextInt(100);
            System.out.print(arr[i]+" ");
        }

        System.out.println();
        int index;
        Scanner scan = new Scanner(System.in);
        System.out.print("Enter index value: ");
        index = scan.nextInt();

        if(index>=0 && index<arr.length){
            System.out.println(arr[index]);
        }
        else{
            System.out.println("Out of Bounds");
        }
    }
}