算法学习之路之一 —— swap的不同类型数据实现交换

public static void swap(int[] a , int i,int j  ){
int temp;
temp = a[i];
a[i] = a[j];
a[j] = temp;
}

public static void swap(Object[] a,int i ,int j){
Object temp = a[i];
a[i] = a[j];
a[j] = temp;
}