java 冒泡排序找最大值

public class BubbleSort {
public static void main(String[] args) {

System.out.println(System.currentTimeMillis());

int[] arr={3,2,1,4,5,6,22,17,13,29,14,15,12,123,13,133,1334,133,34,14};
int temp=0;
for(int i=0;i<arr.length;i++){
for(int j=i+1;j<arr.length;j++){
if(arr[j]>arr[i]){
temp=arr[i];
arr[i]=arr[j];
arr[j]=temp;
}
}
}

System.out.println("最大值为："+arr[0]);
System.out.println(System.currentTimeMillis());

}
}