Generic used to code reuse, type safety and
increase performance, it consists in declaring a Type with Type parameter that
will be instantiate. Declare generic with the help of <T> where T is the
Parameterized type. Classes, Interfaces, Methods, Properties, Delegates can be
used as a generic type.
Simple program to compare two string
parameters using Compare method in CompareValue class.
using System;
namespace Generic
{
class Program
{
static
void Main(string[] args)
{
CompareValue check = new CompareValue();
Console.WriteLine(check.Compare("A", "A"));
Console.ReadKey();
}
}
public class CompareValue
{
public
bool
Compare(string value1, string value2)
{
return
value1.Equals(value2);
}
}
}
Output will be:
True
if check string parameter and integer
parameter pass Compare method will throw errors
Console.WriteLine(check.Compare("A", "123"));
Generic method:
using System;
namespace Generic
{
class Program
{
static
void
Main(string[] args)
{
CompareValue check = new CompareValue();
Console.WriteLine(check.Compare<string>("A", "A"));
Console.ReadKey();
}
}
public class CompareValue
{
public
bool
Compare<T>(T value1, T value2)
{
return
value1.Equals(value2);
}
}
}
Output:
True
Generic Class:
using System;
namespace Generic
{
class Program
{
static
void
Main(string[] args)
{
CompareValue<string> check = new CompareValue<string>();
Console.WriteLine(check.Compare("A", "A"));
Console.ReadKey();
}
}
public class CompareValue<T>
{
public
bool
Compare(T value1, T value2)
{
return
value1.Equals(value2);
}
}
}
Output:
True
Create integer generic class
using System;
namespace Generic
{
class Program
{
static
void
Main(string[] args)
{
CompareValue<int> check = new CompareValue<int>();
Console.WriteLine(check.Compare(100,
100));
Console.ReadKey();
}
}
public class CompareValue<T>
{
public
bool
Compare(T value1, T value2)
{
return value1.Equals(value2);
}
}
}
Output:
True
If pass parameter 100 , 200 output will be
false value:
Console.WriteLine(check.Compare(100, 200));
Output will be:
False
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