两种类似的方式:
/**
* 冒泡排序
* @author roc
*/
public class BubbleSort {
//交换数组元素
private static void swap(int[] a,int i,int j){
int t = a[i];
a[i] = a[j];
a[j] = t;
}
//第一种冒泡排序
public static void sort1(int[] a){
int max = a.length-1;
int i,j;
for(i=0;i<max;i++){
for(j=0;j<max-i;j++){
if(a[j+1]<a[j]){
swap(a,j,j+1);
}
}
}
}
//第二种冒泡排序
public static void sort2(int[] a){
int max = a.length-1;
int i,j;
for(i=0;i<max;i++){
for(j=i+1;j<a.length;j++){
if(a[j]<a[i]){
swap(a,i,j);
}
}
}
}
}
测试:
int[] a = {9,0,6,5,8,2,1,7,4,3};
System.out.println(Arrays.toString(a));
BubbleSort.sort1(a);
//BubbleSort.sort2(a);
System.out.println(Arrays.toString(a));
输出:
[9, 0, 6, 5, 8, 2, 1, 7, 4, 3]
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
网友评论