JAVA十大排序算法之冒泡排序详解

public class BubbleSort {
    public static final int[] ARRAY = {24, 7, 43, 78, 62, 98, 82, 18, 54, 37, 73, 9};
    public static void main(String[] args) {
        print(ARRAY);
        System.out.println("============================================");
        print(sort(ARRAY));
    }
    public static int[] sort(int[] array) {
        if (array.length == 0) {
            return array;
        }
        for (int i = 0; i < array.length; i++) {
            //array.length - 1 -i 已经冒泡到合适位置无需在进行排序，减少比较次数
            for (int j = 0; j < array.length - 1 -i; j++) {
                //前面的数大于后面的数交换
                if (array[j + 1] < array[j]) {
                    int temp = array[j + 1];
                    array[j + 1] = array[j];
                    array[j] = temp;
                }
            }
        }
        return array;
    }
    public static void print(int[] array) {
        for (int i : array) {
            System.out.print(i + "  ");
        }
        System.out.println("");
    }
}