如何检查一个字符是否等于一个空格?
这是我得到的:
private static int countNumChars(String s) {
for(char c : s.toCharArray()){
if (Equals(c," "))
}
}
但是该代码说它找不到该方法的符号.我记得 Java 有一个这样的比较器...有什么建议吗?
But that code says it cannot find Symbol for that method. I remember Java having a comparer like this... Any suggestions?
推荐答案
if (c == ' ')
char
是原始数据类型,因此可以与 ==
进行比较.
char
is a primitive data type, so it can be compared with ==
.
此外,通过使用双引号,您可以创建 String
常量 (" "
),而使用单引号它是一个 char
常量 (' '
).
Also, by using double quotes you create String
constant (" "
), while with single quotes it's a char
constant (' '
).
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