What does “/=” mean in Java?

Question

I was checking some code online when i found the following statement

number /= 10;

I know that / mean divison and = is the assignment operator but i don't understand what it does in this case.

Answer 1

It means that whatever the value number contains will be divided by 10 and the result will be stored back into number.

It is exactly equivalent to

number = number / 10

Most of the major operators have it:

number *= 10
number += 10
number -= 10
number %= 10
number >>= 10
number <<= 10

Answer 2

It means

number =number/10;

Number divided by 10

you can also do

 number operator=number

where operator can be + , / , *

Answer 3

This is the shorter notation for number = number / 10; The same exists for the other operators as well:

x += y; => x = x + y;
x -= y; => x = x - y;
x *= y; => x = x * y;
x %= y; => x = x % y;

Answer 4

It is equivalent of -

number = number / 10;  

It is a composite operator - consist of division and assignment. You may found something like this -

+=
-=
%=  etc.

All of these above works similarly.