This chapter is from the book
This chapter is from the book
This chapter is from the book
Operators
Operators are symbols that are used to perform some action. For instance, the = operator can be used to assign a value to something:
strName = "Hello"
You should be already familiar with many of the operators because you use them in everyday life. Table 3.3 lists all of VB.NET's operators, in order of precedence.
Table 3.3 VB.NET Operators, in Order of Precedence
|
Function |
Operator |
|
Exponentiation |
^ |
|
Unary negation |
+, - |
|
Multiplication, division into (6 \ 2 = .3333) |
*, \ |
|
Division by (6 / 2 = 3) |
/ |
|
Modulus (6 mod 4 = 2) |
Mod |
|
Addition, subtraction |
+, - |
|
Bitwise NOT, AND, OR, and XOR |
Not, And, Or, Xor |
|
Concatenation |
&, + (string) |
|
Equal to, not equal to, less than, greater than |
=, <>, <, > |
|
Less than or equal to, greater than or equal to |
<=, >= |
|
Relational |
TypeOf...Is, Is, Like |
|
Assignment |
=, ^=, *=, /=, \=, +=, -=, &= |
|
Logical NOT, AND, OR, and XOR |
AND, ANDALSO, OR, XOR, ORELSE |
You can use parentheses to change the order of precedence as well. For example, 4+5*3 = 19, while (4+5)*3 = 27.
The C# operators are listed in Table 3.4.
Table 3.4 C# Operators, in Order of Precedence
|
Type |
Operators |
|
Primary |
-(x), x.y, f(x), a[x], x++, x--, new, typeof, sizeof, checked, unchecked |
|
Unary |
+, -, !, ~, ++x, --x, (T)x |
|
Multiplicative |
*, /, % |
|
Additive |
+, - |
|
Shift |
<<, >> |
|
Relational |
<, >, <=, >=, is |
|
Equality |
==, != |
|
Logical AND |
& |
|
Logical XOR |
^ |
|
Logical OR |
| |
|
Conditional AND |
&& |
|
Conditional OR |
|| |
|
Conditional |
?: |
|
Assignment |
=, *=, /=, %=, +=, -=, <<=, >>=, &=, ^=, |= |