Program52.java

public class Program52 {

    //selection sort
    public static void printArray(int[] arr) {
        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i] + " ");
        }
        System.out.println();
    }
//time complexity: O(n^2)
//space complexity: O(1)

    public static void main(String[] args) {
        int[] arr = {7, 8, 3, 1, 2};

        for (int i = 0; i < arr.length - 1; i++) {
            int smallest = i;
            for (int j = i + 1; j < arr.length; j++) {
                if (arr[j] < arr[smallest]) {
                    smallest = j;
                }
            }
            int temp = arr[smallest];
            arr[smallest] = arr[i];
            arr[i] = temp;
        }

        printArray(arr);
    }
}