// -Operators can be roughly classified into three categories:
// -Unary — Act on single operands
// -Binary — Act on two operands
// -Ternary — Act on three operands
Mathematical Operators
// Simple Mathematical Operators
// OPERATOR CATEGORY EXAMPLE EXPRESSION RESULT
// + Binary var1 = var2 + var3; var1 is assigned the value that is the sum of var2 and var3.
// - Binary var1 = var2 - var3; var1 is assigned the value that is the value of var3 subtracted from the value of var2.
// * Binary var1 = var2 * var3; var1 is assigned the value that is the product of var2 and var3.
// / Binary var1 = var2 / var3; var1 is assigned the value that is the result of dividing var2 by var3.
// % Binary var1 = var2 % var3; var1 is assigned the value that is the remainder when var2 is divided by var3.
// + Unary var1 = +var2; var1 is assigned the value of var2.
// - Unary var1 = -var2; var1 is assigned the value of var2 multiplied by -1.
//
//
// Increment and Decrement Operators
// OPERATOR CATEGORY EXAMPLE EXPRESSION RESULT
// ++ Unary var1 = ++var2; var1 is assigned the value of var2 + 1. var2 is incremented by 1.
// -- Unary var1 = --var2; var1 is assigned the value of var2 - 1. var2 is decremented by 1.
// ++ Unary var1 = var2++; var1 is assigned the value of var2. var2 is incremented by 1.
// -- Unary var1 = var2--; var1 is assigned the value of var2. var2 is decremented by 1.
//
//
// ++ always results in its operand being incremented by one.
// −− always results in its operand being decremented by one.
//
// Placing one of these operators before its operand means that
// the operand is affected before any other computation takes place. Placing it after the operand means that the
// operand is affected after all other computation of the expression is completed.
1 class MainClass
2 {
3 static void Main()
4 {
5 double x;
6 x = 1.5;
7 Console.WriteLine(++x);
8 x = 1.5;
9 Console.WriteLine(x++);
10 Console.WriteLine(x);
11 }
12 }
13
14 Output
15 2.5
16 1.5
17 2.5
Assignment Operators
// Like =, they all result in a value being assigned to the variable on their left side based on the operands and operators on their right side.
//
// OPERATOR CATEGORY EXAMPLE EXPRESSION RESULT
// = Binary var1 = var2; var1 is assigned the value of var2.
// += Binary var1 += var2; var1 is assigned the value that is the sum of var1 and var2.
// -= Binary var1 -= var2; var1 is assigned the value that is the value of var2 subtracted from the value of var1.
// *= Binary var1 *= var2; var1 is assigned the value that is the product of var1 and var2.
// /= Binary var1 /= var2; var1 is assigned the value that is the result of dividing var1 by var2.
// %= Binary var1 %= var2; var1 is assigned the value that is the remainder when var1 is divided by var2.
Operator Precedence
// PRECEDENCE OPERATORS
// Highest ++, -- (used as prefi xes); +, - (unary)
// *, /, %
// +, -
// =, *=, /=, %=, +=, -=
// Lowest ++, -- (used as suffixes)