冒泡排序

public class test {
    public static void main(String[] args) {
        long[] arr = {45,34,23,12,1};
        sort(arr);
        for (int i = 0; i < arr.length; i++) {
            System.out.println(arr[i]);
        }

    }

    /**
     * 冒泡排序
     * @param arr
     */
    public static void sort(long[] arr){
        long temp = 0;
        for (int i = 0; i < arr.length-1; i++) {
            for (int j = arr.length-1;j>i;j--){
                if (arr[j]<arr[j-1]){
                    temp = arr[j];
                    arr[j]=arr[j-1];
                    arr[j-1]=temp;
                }
            }
        }
    }
}