1. 下面程序的运行结果是什么( A ) public static void main(String[] args){ String s1 = “abc”; String s2 = “xyz”; show(s1,s2); System.out.println(s1+”-----”+s2); } static voidshow(String s1,String s2){ s1 =s2+s1+”Q”; s2 = “W”+s1; } a) abc-----xyz b) xyzabcQ-----xyzWabc c) xyzabcQ----xyzabcQWabc d) xyzQ----Wabc
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