simple java(三)---Arithmetic Operation

Arithmetic Operation

今天要講 JAVA arithmetic(算術子)

* for multiplication

/ for division

+, - for Addition, Subtraction

% for Modulus

+ 的用法.

例如: 2 + 35 gives 37

but "2" + "35" gives "235"

% and / 的用法

例如: 14 / 3 =4

8 % 12 =8

JAVA的簡寫

c = c + 3;可以寫成c += 3;

e = e * 5 ;可以寫成e *= 5;

d = d - 4;可以寫成d -= 4;

f = f / 3;可以寫成f /= 3;

++a <<<<<<<<<<< 先用a值之後加1

a++ <<<<<<<<< 用加1之後的a值,即是a+1

&& (logical AND)

(logical OR)

! (logical NOT)