selection sort in java

1public static void SelectionSort(int[] arr)
2{
3  int small;
4  for (int i = 0; i <arr.length - 1; i++)
5  {
6    small = i;
7    for (int j = i + 1; j < arr.length; j++)
8    {
9      //if current position is less than previous smallest
10      if (arr[j] < arr[small])
11      {
12        small = j;
13        
14        //swap values
15        int temp = arr[i];
16        arr[i] = arr[small];
17        arr[small] = temp; 
18      }
19  	}
20  }
21}

1// example on selection sort java
2public class SelectionSortInJava
3{
4   void toSort(int[] arrNum)
5   {
6      int number = arrNum.length;
7      for(int a = 0; a < number - 1; a++)
8      {
9         // finding minimum element
10         int minimum = a;
11         for(int b = a + 1; b < number; b++)
12         {
13            if(arrNum[b] < arrNum[minimum])
14            {
15               minimum = b;
16            }
17         }
18         // swapping minimum element with first element
19         int temp = arrNum[minimum];
20         arrNum[minimum] = arrNum[a];
21         arrNum[a] = temp;
22      }
23   }
24   // printing array
25   void displayArray(int[] arrPrint)
26   {
27      int num = arrPrint.length;
28      for(int a = 0; a < num; ++a)
29      {
30         System.out.print(arrPrint[a] + " ");
31      }
32      System.out.println();
33   }
34   public static void main(String[] args)
35   {
36      SelectionSortInJava obj = new SelectionSortInJava();
37      int[] arrInput = {5, 4, -3, 2, -1};
38      obj.toSort(arrInput);
39      System.out.println("After sorting : ");
40      obj.displayArray(arrInput);
41   }
42}

1static void selectionSort(int[] arr) {
2        int lowest, lowestIndex;
3        for(int i = 0; i < arr.length -1; i++) {
4            //Find the lowest
5            lowest = arr[i];
6            lowestIndex = i;
7            for(int j = i; j < arr.length; j++) {
8                if(arr[j] < lowest) {
9                    lowest = arr[j];
10                    lowestIndex = j;
11                }
12            }
13            //Swap
14            if(i != lowestIndex) {
15                int temp = arr[i];
16                arr[i] = arr[lowestIndex];
17                arr[lowestIndex] = temp;
18            }
19            
20        }
21    }