%= 在 Java 中是什么意思？
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What does %= mean in Java?
提问by Daniel
How does %= work in Java? I've been told that it can be used to reassign a value?
%= 在 Java 中如何工作？有人告诉我它可以用来重新分配一个值？
Grateful if anyone could teach! Thanks!
如果有人能教，不胜感激！谢谢！
minutes=0;
while(true){
minutes++;
minutes%=60;
}
采纳答案by pobrelkey
This is short for:
这是以下简称：
minutes = minutes % 60;
There are other, similar compound assignment operatorsfor all the binary operators in Java: +=, -=, *=, ^=, ||=, etc.
还有其他类似的复合赋值运算符在Java中所有的二元运算符：+=，-=，*=，^=，||=，等。
回答by nanofarad
+= is add to:
+= 添加到：
i+=2;
is i = i + 2;
是 i = i + 2;
%is remainder: 126 % 10is 6.
%是余数：126 % 10是 6。
Extending this logic, %=is set to remainder:
扩展这个逻辑，%=设置为余数：
minutes%=60;
sets minutes to minutes % 60, which is the remainder when minutesis divided by 60. This is to keep minutes from overflowing past 59.
将分钟设置为minutes % 60，即minutes除以 60的余数。这是为了防止分钟溢出超过 59。
回答by Elliott Frisch
It's a Modulo operationwhich is the same as taking the remainder from division. minutes%=60;is the same as minutes = minutes % 60;which is the same as minutes = minutes - (((int) (minutes/60)) * 60);
这是一个模运算，与从除法中取余数相同。minutes%=60;是一样的minutes = minutes % 60;是一样的minutes = minutes - (((int) (minutes/60)) * 60);
