冒泡排序

public static void main(String[] args) {

    int []arr = {23, 9, 1, 56, 90, 3};

    for(int i=0; i<arr.length; i++){
        System.out.println(arr[i]);
    }
    System.out.println("===================");
    sort(arr, arr.length);
}

 

public static void sort(int []arr, int length){
    int temp;
    for(int i=0; i<length-1; i++){
        for(int j=0; j<length-1-i; j++){
            if(arr[j]>arr[j+1]){
                temp = arr[j+1];
                arr[j+1] = arr[j];
                arr[j] = temp;
            }
        }
    }

    for(int i=0; i<length; i++){
        System.out.println(arr[i]);
    }
}