冒泡排序的java代码

public class Test {
public static void main(String[] args){
//int arr[] = {9,8,7,6,5,4,3,2,1};
BubbleSort bSort  = new BubbleSort();
int arr[] = bSort.getDate();
bSort.sort(arr);
bSort.printDate(arr);
}


}
 abstract class SortArray{
public int[]  getDate() {
int len = 10;
int arr[] = new int[len];
for(int i = 0; i < arr.length; i++){
arr[i] =(int)( Math.random()*100);
}
return arr;

}
abstract public void sort(int arr[]);
public void printDate(int arr[]) {
for(int i = 0; i < arr.length; i++){
System.out.print(arr[i] + "   ");
}

}

}
 class BubbleSort extends SortArray{


@Override
public void sort(int arr[]) {
// TODO Auto-generated method stub
for(int i = 0; i < arr.length-1; i++){
for(int j = 0; j < arr.length-i-1; j++ ){
if(arr[j]>arr[j+1]){
int temp = 0;
temp = arr[j];
arr[j] = arr[j+1];
arr[j+1] = temp;
}
}
}

}
 
 }