Question

java 实现 abcd 反向输出··我不知道我那里出了问题

String s2[]={a,b,c,d};
for (int i=s2.length-1;i>=0;i--)
System.out.print(s2[i]);

String s2[]={a,b,c,d}; 这句的{a,b,c,d}老是报错

Answer 1

String s2[]={"a","b","c","d"};  
  for (int i=s2.length-1;i>=0;i--)
   System.out.print(s2[i]+" ");

字符串需要加双引号的 并且是英文状态下的符号

Answer 2

....很显示的错误啊！！！！！ 字符串要加" "号， 除非你的a b c d 是字符串变量

还有如果是 char s2[]={'a','b','c','d'};

Answer 3

a,b,c,d得写成字符串

Answer 4

String s2[]={"a","b","c","d"};