阅读下面的程序,选择正确的答案?()class StringDemo{public static void main(String[] args){String s1 = "a";String s2 = "b";show(s1,s2);System.out.println(s1+s2);}public static void show(String s1,String s2){s1 = s1 +"q";s2 = s2 + s1;}} 程序 选择 发布时间:2024-03-28 15:53:54