About selection sorting in Java and bubble sorting method

One, the method is to directly pass in an array to sort (select Sort method)

public static void Selectsort (Int. arr[]) {for    (int i = 0; i < arr.length-1; i++) {for (int j = i+1; J < Arr.leng Th J + +) {if (Arr[j]<arr[i]) {int temp=arr[i];arr[i]=arr[j];arr[j]=temp;}}}    

Two, this kind of thing passed in an array and an array number (select Sort method)

public static void Sel_sort (int[] x, int n) {          int k, I, M, T;          for (k=0; k<n-1; k++) {  //multiple-trip sort               m = k;              for (i=k+1; i<n; i++) {                  if (X[i] < x[m])                m = i;            }              t = x[k];              X[K] = x[m];              X[m] = t;          }      }

Three, bubble Sort method

private static void bubble sort (int[] arr) {for (int j = 0; J < Arr.length-1; J + +) {for (int i=0;i<arr.length-1-j;i++) {if (AR R[i]>arr[i+1]) {int temp=arr[i];arr[i]=arr[i+1];arr[i+1]=temp;}}}}

About selection sorting in Java and bubble sorting method