в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:16:27Z

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==Boolean logical AND operator==

<source lang="csharp">class MainClass
{
public static void Main()
{
bool result;

result = (1 == 1) && (2 > 1);
System.Console.WriteLine("(1 == 1) && (2 > 1) is " + result);
result = (1 == 1) && (2 < 1);
System.Console.WriteLine("(1 == 1) && (2 < 1) is " + result);
}
}</source>
<pre class=codeResult>(1 == 1) && (2 > 1) is True
(1 == 1) && (2 < 1) is False</pre>

==Boolean logical NOT operator==

<source lang="csharp">class MainClass
{
public static void Main()
{
bool result;

result = !(1 == 0);
System.Console.WriteLine("!(1 == 0) is " + result);
result = !(1 == 1);
System.Console.WriteLine("!(1 == 1) is " + result);
}
}</source>
<pre class=codeResult>!(1 == 0) is True
!(1 == 1) is False</pre>

==Boolean logical OR operator==

<source lang="csharp">class MainClass
{
public static void Main()
{
bool result;

result = (1 == 1) || (1 == 0);
System.Console.WriteLine("(1 == 1) || (1 == 0) is " + result);
result = (1 == 0) || (1 == 0);
System.Console.WriteLine("(1 == 0) || (1 == 0) is " + result);
}
}</source>
<pre class=codeResult>(1 == 1) || (1 == 0) is True
(1 == 0) || (1 == 0) is False</pre>

==false expressions for operators: ==, > and ==

<source lang="csharp">class MainClass
{
public static void Main()
{
bool result;

result = 10 == 1;
System.Console.WriteLine("10 == 1 is " + result);
result = 10 < 1;
System.Console.WriteLine("10 < 1 is " + result);
result = 10 <= 1;
System.Console.WriteLine("10 <= 1 is " + result);
}
}</source>
<pre class=codeResult>10 == 1 is False
10 < 1 is False
10 <= 1 is False</pre>

==List of Boolean Operators==

<source lang="csharp">Operator Symbol
Equals ==
Not Equal !=
Less Than <
Greater Than >
And (Short Circuiting) &&
Or (Short Circuiting) ||
And &
Or |
Less Than or Equal <=
Greater Than or Equal >=
Logical XOR ^</source>

==Logical operators==

Operator
Meaning
&
AND
|
OR
^
XOR (exclusive OR)
||
Short-circuit OR
&&
Short-circuit AND
!
NOT
p
Q
p & q
p | q
p ^ q
!p
False
False
False
False
False
True
True
False
False
True
True
False
False
True
False
True
True
True
True
True
True
True
False
False

==Logical operators with an if statement==

<source lang="csharp">class MainClass
{
public static void Main()
{
int intValue = 1500;
string stringValue = "closed";
if ((intValue > 1000) && (stringValue == "closed"))
{
System.Console.WriteLine("and");
}
}
}</source>
<pre class=codeResult>and</pre>

==Relational Operators==

<p>The relational operators are as follows:</p>
Operator
Meaning
==
Equal to
!=
Not equal to
>
Greater than
<
Less than
>=
Greater than or equal to
<=
Less than or equal to

<source lang="csharp">using System;
class MainClass
{
static void Main(string[] args)
{
int a = 10, b = 20, c = 30;
if (a < 15 && b < 20)
c = 10;
Console.WriteLine(c);
if (a < 15 || b < 20)
c = 15;

Console.WriteLine(c);
if (!(a == 15))
c = 25;

Console.WriteLine(c);
}
}</source>

==true expressions for operators: !=, >, ==

<source lang="csharp">class MainClass
{
public static void Main()
{
bool result;

result = 10 != 1;
System.Console.WriteLine("10 != 1 is " + result);
result = 10 > 1;
System.Console.WriteLine("10 > 1 is " + result);
result = 10 >= 1;
System.Console.WriteLine("10 >= 1 is " + result);
int intValue1 = 10;
int intValue2 = 1;
result = intValue1 != intValue2;
System.Console.WriteLine("intValue1 != intValue2 is " + result);
}
}</source>
<pre class=codeResult>10 != 1 is True
10 > 1 is True
10 >= 1 is True
intValue1 != intValue2 is True</pre>

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