View Classes as Modules

class Sort {

public static void exchangeSort(int a[]){

int tmp;

for (int i=0; i<a.length; i++)

for (int j=i+1; j<a.length; j++)

if (a[i]>a[j]){

tmp = a[i];

a[i] = a[j];

a[j] = tmp;

}