public class SelectionSortExample { public static void main(String[] args) { // This is unsorted array Integer[] array = new Integer[] { 12, 13, 24, 10, 3, 6, 90, 70 }; // Let's sort using selection sort selectionSort(array, 0, array.length); // Verify sorted array System.out.println(Arrays.toString(array)); } @SuppressWarnings({ "rawtypes", "unchecked" }) public static void selectionSort(Object[] array, int fromIndex, int toIndex) { Object d; for (int currentIndex = fromIndex; currentIndex < toIndex; currentIndex++) { int indexToMove = currentIndex; for (int tempIndexInLoop = currentIndex + 1; tempIndexInLoop < toIndex; tempIndexInLoop++) { if (((Comparable) array[indexToMove]).compareTo(array[tempIndexInLoop]) > 0) { //Swapping indexToMove = tempIndexInLoop; } } d = array[currentIndex]; array[currentIndex] = array[indexToMove]; array[indexToMove] = d; } } } //Output: [3, 6, 10, 12, 13, 24, 70, 90]