import java.util.Arrays;
public class SortDemo {
public static void main(String[] args) {
int[] ary=new int[]{8,2,5,7,3,1};
//从小到大排序,并输出
//Arrays.sort(ary);
bubble(ary);
System.out.println(Arrays.toString(ary));
}
public static void bubble(int[] ary){ //冒泡排序
for(int i=0;i<ary.length-1;i++){ //i是比几轮,(length-1)轮
for(int j=0;j<ary.length-1-i;j++){ //-i意思是最大的数在第一轮就到了最底下,下一轮就不用比了
if(ary[j]>ary[j+1]){
int t=ary[j];
ary[j]=ary[j+1];
ary[j+1]=t;
}
}
}
}
}