CODE
using System;
class Swap
{
static void Main()
{
int a = 10, b = 20;
Console.WriteLine("Before Swap");
Console.WriteLine("A = "+a+" B = "+b);
a = a + b;
// 30 = 10 + 20;
b = a - b;
// 10 = 30 - 20;
a = a - b;
// 20 = 30 - 10;
Console.WriteLine("After Swap");
Console.WriteLine("A = "+a+" B = "+b);
}
}
OUTPUT
Before Swap
A = 10 B = 20
After Swap
A = 20 B = 10
CODE
using System;
class Calculation
{
static void Main()
{
int sum , difference , product;
float quotient;
Console.WriteLine("Calculation");
Console.Write("Enter A = ");
int a = Convert.ToInt32(Console.ReadLine());
Console.Write("Enter B = ");
int b = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("\n Your Value A = "+a+" & B = "+b);
Console.WriteLine("----------------------------------");
sum = a + b;
Console.WriteLine("Sum = " + sum);
difference = a - b;
Console.WriteLine("Difference = " + difference);
product = a * b;
Console.WriteLine("Product = " + product);
quotient = a / b;
Console.WriteLine("Quotient = " + quotient);
}
}
OUTPUT
Calculation
Enter A = 20
Enter B = 30
Your Value A = 20 & B = 30
----------------------------------
Sum = 50
Difference = -10
Product = 600
Quotient = 0
CODE
using System;
class Relational_Operator
{
static void Main()
{
Console.WriteLine("Relational Operator ");
Console.Write("Enter A = ");
int a = Convert.ToInt32(Console.ReadLine());
Console.Write("Enter B = ");
int b = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("\n Your Value A = " + a + " & B = " + b);
Console.WriteLine("----------------------------------");
Console.WriteLine("A > B " + (a > b));
Console.WriteLine("A < B " + (a < b));
Console.WriteLine("A >= B " + (a >= b));
Console.WriteLine("A <= B " + (a <= b));
Console.WriteLine("A == B " + (a == b));
Console.WriteLine("A != B " + (a != b));
}
}
OUTPUT
Relational Operator
Enter A = 20
Enter B = 20
Your Value A = 20 & B = 20
----------------------------------
A > B False
A < B False
A >= B True
A <= B True
A == B True
A != B False
CODE
using System;
class CheckNo
{
static void Main()
{
Console.WriteLine("Check No. is Positive | Negative | Zero ");
Console.Write("Enter A = ");
int a = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("\n Your Value A = " + a);
Console.WriteLine("----------------------------------");
if(a > 0)
{
Console.WriteLine("Positive");
}
else if (a < 0)
{
Console.WriteLine("Negative");
}
else
{
Console.WriteLine("Zero");
}
}
}
OUTPUT
Check No. is Positive | Negative | Zero
Enter A = 0
Your Value A = 0
----------------------------------
Zero
CODE
using System;
class NestedIf
{
static void Main()
{
int a = 100 , b = 20 , c = 20 ;
if(a < b)
{
if (b < c)
{
Console.WriteLine(" Largest No. is "+c);
}
else
{
Console.WriteLine(" Largest No. is " + b);
}
}
else if(a > b)
{
if(a > c)
{
Console.WriteLine(" Largest No. is " + a);
}
else
{
Console.WriteLine(" Largest No. is " + b);
}
}
else
{
Console.WriteLine(" Largest No. is " + c);
}
}
}
OUTPUT
Largest No. is 100
CODE
using System;
class Switch
{
static void Main()
{
Console.WriteLine("Find Day of Week Using Switch");
Console.Write("Enter A = ");
int no = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("\n Your Value = " + no);
Console.WriteLine("----------------------------------");
switch (no)
{
case 1 : Console.WriteLine("Monday");
break;
case 2 : Console.WriteLine("Tuesday");
break;
case 3 : Console.WriteLine("Wednesday");
break;
case 4 : Console.WriteLine("Thursday");
break;
case 5 : Console.WriteLine("Friday");
break;
case 6 : Console.WriteLine("Saturday");
break;
case 7 : Console.WriteLine("Sunday");
break;
default : Console.WriteLine("!Opps Incorrect Number");
break;
}
}
}
OUTPUT
Find Day of Week Using Switch
Enter A =
Your Value = 8
----------------------------------
!Opps Incorrect Number
CODE
using System;
class ForLoop
{
static void Main()
{
Console.WriteLine("For Loop");
for (int i = 1; i <= 10; i++)
{
Console.WriteLine(i);
}
}
}
OUTPUT
For Loop
1
2
3
4
5
6
7
8
9
10
CODE
using System;
class While
{
static void Main()
{
int i = 2;
Console.WriteLine("While Loop");
while(i<=50)
{
Console.WriteLine(i);
i += 2;
}
}
}
OUTPUT
While Loop
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
CODE
using System;
class DoWhile
{
static void Main()
{
Console.WriteLine("Do.. While Loop");
int n;
do
{
Console.Write("Enter No. (0 to terminate) : ");
n = Convert.ToInt32(Console.ReadLine());
Console.WriteLine();
if (n != 0)
{
Console.WriteLine(" Entered Number : "+n);
Console.WriteLine();
}
else
{
Console.WriteLine("------------------------------");
Console.WriteLine("Loop Stopped");
break;
}
} while (n != 0);
}
}
OUTPUT
Do.. While Loop
Enter No. (0 to terminate) : 1
Entered Number : 1
Enter No. (0 to terminate) : 22
Entered Number : 22
Enter No. (0 to terminate) : 90
Entered Number : 90
Enter No. (0 to terminate) : 0
------------------------------
Loop Stopped
CODE
// 10 (a) - 1 2 3 ... n series
using System;
class series123n
{
static void Main()
{
for (int i = 1; i <= 10; i++)
{
Console.Write(" "+i);
}
}
}
OUTPUT
1 2 3 4 5 6 7 8 9 10
CODE
// 10 (b) - 1 3 5 ... n series
using System;
class series135n
{
static void Main()
{
for(int i = 1; i<=10; i+=2)
{
Console.Write(" "+i);
}
}
}
OUTPUT
1 3 5 7 9
CODE
// 10 (c) - 2+4+6 ... n series
using System;
class series246n
{
static void Main()
{
for(int i = 2;i<=9;i+=2)
{
Console.Write(i+" + ");
}
Console.WriteLine("10");
}
}
OUTPUT
2 + 4 + 6 + 8 + 10
CODE
// 10 (d) - 1+4+7 ... n series
using System;
class series147n
{
static void Main()
{
for (int i = 1; i <= 9; i += 3)
{
Console.Write(i + " + ");
}
Console.Write("10");
}
}
OUTPUT
1 + 4 + 7 + 10
CODE
// 10 (e) - 0 1 1 2 3 5 ... n series
using System;
class series011235n
{
static void Main()
{
long a = 0, b = 1, c;
for (int i = 0; i <= 10; i++)
{
if (i <= 1)
{
c = i;
}
else
{
c = a + b;
a = b;
b = c;
}
Console.Write(c + " ");
}
Console.WriteLine();
}
}
OUTPUT
0 1 1 2 3 5 8 13 21 34 55
CODE
// 10 (f) - 1 2 2 4 8 ... n series
using System;
class series12248n
{
static void Main()
{
long a = 1, b = 2, c;
for (int i = 1; i <= 10; i++)
{
if (i == 1)
{
Console.Write(a + " ");
continue;
}
if (i == 2)
{
Console.Write(b + " ");
continue;
}
c = a * b;
Console.Write(c + " ");
a = b;
b = c;
}
Console.WriteLine();
}
}
OUTPUT
1 2 2 4 8 32 256 8192 2097152 17179869184
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