java实现冒泡排序，要求从键盘输入几个数，然后对这几个数进行冒泡排序，将排序后的数存入一数组中

简单写了一下：
public class Test {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);

System.out.println("请输入：数字以',' 隔开");
String str = sc.next();
String [] array1 = str.split(",");
for (int i = 0; i < array1.length; i++) {

int a1 = Integer.parseInt(array1[i]);

int max = a1,index =i;;
for (int j = i+1; j < array1.length; j++) {
int a2 = Integer.parseInt(array1[j]);
if (a2>max) {
max=a2;index=j;
}
}
array1[i]=max+"";
array1[index]=a1+"";

}
System.out.println("排序后：");
for (int i = 0; i < array1.length; i++) {
System.out.print(array1[i]+"");
}

}
}