Beginning ASP.NET 4.5 in CSharp and VB Opsylum

Statements x 161
Dim someNumber4 As Integer = 3
someNumber1 += 3 ' Results in someNumber1 having the value 6
someNumber2 -= 3 ' Results in someNumber2 having the value 0
someNumber3 *= 3 ' Results in someNumber3 having the value 9
someNumber4 /= 3 ' Results in someNumber4 having the value 1
C#
int someNumber1 = 3;
int someNumber2 = 3;
int someNumber3 = 3;
int someNumber4 = 3;
someNumber1 += 3; // Results in someNumber1 having the value 6
someNumber2 -= 3; // Results in someNumber2 having the value 0
someNumber3 *= 3; // Results in someNumber3 having the value 9
someNumber4 /= 3; // Results in someNumber4 having the value 1
C# also enables you to increase a variable’s value by 1 using the ++ operator, like this:
C#
int someNumber = 3;
someNumber++; // Results in someNumber having the value 4
This construct is used often in loops, as you’ll see later in the chapter.
Both languages also use arithmetic assignment operators to concatenate string values, as you’ll see
shortly.
Another common set of operators is the comparison operators, which enable you to compare values.
Comparison Operators
Just as with the arithmetic operators, VB.NET and C# each have their own set of comparison
operators to compare one value to another. A comparison operator always compares two values or
expressions and then returns a boolean value as the result. The following table lists the most common
comparison operators.
VB.NET C# Usage
= == Checks if two values are equal to each other
!= Checks if two values are not equal
< < Checks if the first value is less than the second
> > Checks if the first value is greater than the second
= Checks if the first value is greater than or equal to the second
Is is In VB.NET: Compares two objects. In C#: Checks if a variable is of a
certain type