问题描述
我正在阅读一本我正在努力学习的 Java 书籍,我有一个问题.我不明白变量类型 char
和 String
之间有什么区别.例如,int
和 short
之间存在差异,内存中的字节数和它们所拥有的数字区域.
I am reading a book for Java that I am trying to learn, and I have a question. I can't understand what is the difference between the variable type char
and String
. For example, there is a difference between int
and short
, the bytes at the memory and the area of numbers that they have.
char
和 String
有什么区别呢?除了 char
使用 (') 和 "String" (").
But what is the difference between char
and String
? except that char
use (') and "String" (").
PS:这是我的第一个真正的"编程语言.(在学校,我为了编程课学习了一种假语言.)
PS: It is my first "real" programming language. (At school I learned a fake-language for the purpose of the programming lesson.)
推荐答案
char
是一个字符.String
是零个或多个字符.
char
is one character. String
is zero or more characters.
char
是原始类型.String
是一个类.
char
is a primitive type. String
is a class.
char c = 'a';
String s = "Hi!";
注意 char
的单引号和 String
的双引号.
Note the single quotes for char
, and double quotes for String
.
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