Question

Write a java program creating an array of the numbers 1 through 10. Shuffle those numbers.

Randomly pick a number between one and ten and then sequentially search the array for that number.

Once the number is found, place that number at the top of the list.

Print the list. Perform #3 thru #5 ten times.

Answer 1

SOURCE CODE:

import java.util.*;
public class Main
{
   public static void main(String[] args)
   {
           Scanner sc = new Scanner(System.in);
           int arr[] = {1,2,3,4,5,6,7,8,9,10}; //array that stores 1-10 numbers
           int t,i,j,r,search_element,iterations;
           System.out.println("Intial Array: ");
           for(i = 0; i < 10; i++)
           {
               System.out.print(arr[i]+" "); //printing array values
           }
           Random rn = new Random();
           for (i=(arr.length-1); i> 0; i--)
            {
                r=rn.nextInt(i + 1); //selecting random integer
                t= arr[r]; //rando
                arr[r] = arr[i];
                arr[i] = t;
            }
            System.out.print("\nShuffled array: ");
            System.out.println();
            for(i = 0; i < 10; i++)
           {
               System.out.print(arr[i]+" "); //printing array values
           }
           System.out.print("\nEnter number of iterations(3 or 5):");
           iterations=sc.nextInt();
           ArrayList<Integer> Arrlist = new ArrayList<Integer>(iterations); // if 5 iterationsn then set list size 5
           i=iterations; // 5 or 3 iteration
           while(i>0)
           {
                search_element=arr[rn.nextInt(10)]; //selecting random search_element in the array
                System.out.println("Iteration :-"+(iterations-i));
                System.out.println("Search element is:"+ search_element);
                for(j=0;j<arr.length;j++)
                {
                    if(arr[j]==search_element)
                    {
                        System.out.println("Found element :"+search_element+" At index: "+j);
                        Arrlist.add(search_element);
                        break;
                    }
                }
                System.out.println("Array list is: "+Arrlist);
                i--;
                System.out.println();
           }
    }
}

CODE SCREENSHOT:

OUTPUT-1:

OUTPUT-2:

OUTPUT-3: