java插入排序

public class Fuck<T> {
    public static void sort(Comparable[] arr){
        int n = arr.length;
        for(int i=0;i<n;i++){
            for(int j=i;j>0;j--){
                if(arr[j].compareTo(arr[j-1])<0)
                    swap(arr,j,j-1);
                    else
                        break;
            }
        }
    }

    private static void swap(Object[] arr,int i,int j){
        Object t = arr[i];
        arr[i] = arr[j];
        arr[j] = t;
    }

    public static void main(String[] arg){
        int n = 20000;
        Integer[] arr = Fuck.RandomArray(10,10);
        Fuck.sort(arr);
        for(int i : arr){
            System.out.print(i);
        }
}
    private static Integer[] RandomArray(int length, int max){
        Integer[] array = new Integer[length];
        for(int i =0;i<length;i++){
            array[i] = (int) (Math.random()*max);
        }
        return array;
    }
}