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Java学习入门—— 运算符
运算符
运算符是一种特殊的符号，用以表示数据的运算、复制和比较等。大致分为六类： 算术运算符 、赋值运算符、比较运算符、逻辑运算符、 位运算符 和 三元运算符 。
1.算术运算符
①取余运算中结果与被模数的符号相同。
②开发中经常使用%来判断能否被除尽的情况。
③自增1（减1）运算不会改变本身的数据类型
An operator is a special Symbol used to represent data operations, copying, and comparisons, etc. There are roughly six categories: Arithmetic operators, assignment operators, comparison operators, logical operators, bitwise operators, and ternary operators.
1. Arithmetic operators
① The result of the remainder operation has the same sign as the module.
②In development, % is often used to judge whether it can be eliminated.
③The operation of incrementing by 1 (minus 1) will not change its own data type
2.赋值运算符
符号：=
①当“=”两侧的数据类型不一样时，可以使用自动类型转换或强制类型转化原则处理
②支持连续赋值
③扩展赋值运算符：+=、-=、*=、/=、%=（扩展赋值运算符在计算时不会改变变量本身的数据类型）
2. Assignment operator
Symbol: =
①When the data types on both sides of “=” are different, you can use the principle of automatic type conversion or forced type conversion.
②Support continuous assignment
③ Extended assignment operator: +=, -=, *=, /=, %= (the extended assignment operator does not change the data type of the variable itself during calculation)
3.比较运算符
比较运算符的结果都是 boolean 型，也就是要么是true，要么是false。
比较运算符包括：==(相等于) !=(不等于) <(小于) >(大于) <=(小于等于) >=(大于等于)
3. Comparison operators
The results of comparison operators are all boolean, that is, either true or false.
Comparison operators include : == (equal to) != (not equal to) < (less than) > (greater than) <= (less than or equal to) >= (greater than or equal to)
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