WAP to perform Selection Sort for an integer array in Java, BlueJ.

QUESTION:
Write a program to perform Selection Sort for an integer array in Java, BlueJ.

CODE:

import java.io.*;

public class SelectionSort

 {

public static int[] sort(int arr[])

{

   for (int i = 0; i < arr.length - 1; i++)

   {

       int index = i;

       for (int j = i + 1; j < arr.length; j++)

       {

           if (arr[j] < arr[index])

           {

               index = j;

           }

       }

       int smallerNumber = arr[index];  

       arr[index] = arr[i];

       arr[i] = smallerNumber;

   }

   return arr;

}

public static void main()throws IOException

{

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

   int num;

System.out.println("Enter the number of elements to be sorted: ");

num=Integer.parseInt(br.readLine());

int arr1[]=new int[num];

System.out.println("Enter the array to be sorted: ");

for(int i=0;i<arr1.length;i++)

arr1[i]=Integer.parseInt(br.readLine());

int[] arr2 = sort(arr1);

  System.out.println("\nThe elements of the sorted array: "); 

for(int i:arr2)

{

System.out.print(i+"\t");

}

     }

}