Arithmetic operators: generally referred to as subtraction operations. Add operations in Java use the symbol + to use the minus operation-the symbol indicates that the multiplication operation uses the * symbol to denote the use of the/symbol notation to use the% symbol notation (modulo is actually the operation two number division to get the remainder, if the two number is exactly divisible, then the remainder is 0) self-added operator: + + The operation is represented on the original basis + 1 for example int a=90;a++; then the a=91 decrement operator:--The decrement operator is represented on the original basis-1 for example int b=88;b--; then b=87 another example: int a=90;int b=++a; At this point a equals how many B equals how much, at this time a=91 B also equals 91int b=a++ and int b=++a What difference does it first look first int b=a++; It first assigns its own value to B and then only +1 and int b=++a; You first put yourself + 1 and then assign to the B left plus operator + = (Add a value based on the original value) for example: int a=90;a+=90; Represents a on the basis of the original 90 plus 90 left minus operator-= (minus a value on the original basis) left except operator/= left modulo operator%=
Java Arithmetic operators
