practical02.java

// Sort the given array using Selection sort

import java.util.Scanner;

class practical02 {
    public static void printArray(int arr[], int n) {
        for (int i = 0; i < n; i++) {
            System.out.print(arr[i] + " ");
        }
        System.out.println();
    }

    public static void selectionSort(int arr[], int n) {
        for (int i = 0; i < n; i++) {
            int min = i;
            for (int j = i + 1; j < n; j++) {
                if (arr[j] < arr[min]) {
                    min = j;
                }
            }
            if (min != i) {
                int temp = arr[i];
                arr[i] = arr[min];
                arr[min] = temp;
            }
        }
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        System.out.println("Enter number of elements in array: ");
        int n = sc.nextInt();
        int arr[] = new int[n];

        System.out.println("\nEnter " + n + " elements: ");
        for (int i = 0; i < n; i++) {
            arr[i] = sc.nextInt();
        }

        System.out.println("\nArray before sorting: ");
        printArray(arr, n);

        selectionSort(arr, n);

        System.out.println("\nArray after sort: ");
        printArray(arr, n);

        sc.close();
    }
}