Java arithmetic operators 

• ​Arithmetic operators are used in mathematical expressions in the same way that they are used in algebraic equations.

+ addition

– subtraction

* multiplication

/ division

% modulo

+ operator

• The + operator adds together two values, such as two constants, a constant and a variable, or a variable and a variable.
  

  int sum1 = 50 + 10;
  int sum2 = sum1 + 66;
  int sum3 = sum2 + sum2;

– subtraction

int sum1 = 1000 – 10;
int sum2 = sum1 – 5;
int sum3 = sum1 – sum2;