“char"和“char"之间的区别和“字符串"在爪哇 [英] Difference between "char" and "String" in Java

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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