在 Java 中 , 下面代码的输出结果为( )。(选择一项) public static void main(String[] args) { int [] arrA = { 12, 22, 8, 49, 3 }; int k = 0; int len = arrA.length; for ( int i = 0; i < len; i++) { for ( int j = i + 1; j < len; j++) { if (arrA[i] > arrA[j]) { k = arrA[i]; arrA[i] = arrA[j]; arrA[j] = k; } } } for ( int i = 0; i < arrA.length; i++) { System. out .print(arrA[i]); if (i < arrA.length - 1) { System. out .print(" , "); } } }