java算法之冒泡排序

/** 
 * @desc:冒泡排序 
 * @author: 毛会懂 
 * @create: 2020-12-23 11:39:00 
 **/ 
public class Bubbling { 
    public static void sort(Comparable[] arr){ 
        for(int i = arr.length -1; i > 0;i--){ 
            //只冒泡到第i个元素就行了，因为后面的元素已经有序 
            for(int j = 0;j < i;j++){ 
                if(isExchange(arr[j],arr[j+1])){ 
                    swap(arr,j,j+1); 
                } 
            } 
        } 
    } 
 
    private static Boolean isExchange(Comparable o1,Comparable o2){ 
        return o1.compareTo(o2) > 0; 
    } 
 
    private static void swap(Comparable[] arr,int i,int j){ 
        Comparable temp = arr[i]; 
        arr[i] = arr[j]; 
        arr[j] = temp; 
    } 
} 
 
//冒泡排序 
public static void main(String[] args) { 
    Integer[] arr = {10,8,20,30,5,7,4,12,40,30,1,2,4,3,100,5,32,45,23,66,45,7,55,79,6}; 
    Bubbling.sort(arr); 
    Arrays.asList(arr).forEach(System.out::println); 
}