MCA SY Visual Programming Tools
Unit 1 Introduction to ASP.NET
Unit 1 Introduction to ASP.NET
Practical List
Wednesday, 19 August 2026
Monday, 16 March 2026
using System;
namespace SampleApp
{
public delegate string MyDel(string str);
class EventProgram
{
event MyDel MyEvent;
public EventProgram()
{
MyEvent += new MyDel(show);
}
public static string show(string str)
{
return str;
}
static void Main(string[] args)
{
EventProgram obj1 = new EventProgram();
string result = obj1.MyEvent("Event fired");
Console.WriteLine(result);
}
}
}
Friday, 6 March 2026
using System
namespace IndexerDemo {
class INames {
private string[] list = new string[size];
static public int size = 10;
public INames() {
for (int i = 0; i < size; i++)
list[i] = "N. A.";
}
public string this[int index] {
get {
string tmp;
if( index >= 0 && index <= size-1 ) {
tmp = list[index];
} else {
tmp = "";
}
return ( tmp );
}
set {
if( index >= 0 && index <= size-1 ) {
list[index] = value;
}
}
}
static void Main(string[] args) {
INames names = new INames();
names[0] = "seema";
names[1] = "Riya";
names[2] = "Neeta";
names[3] = "Asif";
names[4] = "Diya";
names[5] = "Sunil";
names[6] = "Ruba";
for ( int i = 0; i < INames.size; i++ ) {
Console.WriteLine(names[i]);
}
Console.ReadKey();
}
}
}
Wednesday, 4 March 2026
out parameter
The out parameter in C# is a keyword used to pass arguments by reference, allowing a method to return multiple values or modify variables outside its scope.
Unlike regular parameters, variables passed as out arguments do
not need to be initialized before the method call.
Key
Characteristics
- Passing by Reference: When an argument is passed
with out, the method works with the same memory location as the
original variable, so any changes made inside the method are reflected in
the calling code.
- Mandatory Assignment: The called method must
assign a value to all out parameters before it returns;
the code will not compile otherwise.
- No Initial Value Required: The calling code is not
required to initialize the variable before passing it to an out parameter.
This is the primary difference from the ref keyword, which
requires initialization.
- Multiple Return Values: It is commonly used when a
method needs to return more than one piece of data, in scenarios like
the int.TryParse pattern, where a boolean return value indicates
success and the out parameter provides the result.
using System;
using static
System.Console;
namespace OutExample
{
class Program
{
static void Main(string[] args)
{
WriteLine("Please enter
radious for circle");
double radious = Convert.ToDouble(ReadLine());
double circumference = CalculateCircle(radious,
out double area);
WriteLine("Circle's
circumference is "+circumference);
WriteLine("Circle's Area is "+area);
}
static double CalculateCircle(double
radious, out double area)
{
area = 3.14 *radious*radious;
double circumference = 2 * Math.PI *
radious;
return circumference;
}
}}
Tuesday, 6 January 2026
Thursday, 13 November 2025
Monday, 10 November 2025
MCA FY
Data structure Practical list Previous Year Question Paper
MCA FY Sem I
MCA-R 102 Data structure using C
Chapter 1 Introduction to Algorithm
Chapter 2 Introduction to Data Structures
Chapter 4 Sorting and Searching
Saturday, 19 July 2025
Friday, 2 May 2025
Monday, 20 May 2024
Tuesday, 6 February 2024
Thursday, 1 February 2024
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