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C# program to find the list of students whose name contains 4 characters using where() method of List collection using Linq
Here, we are going to learn how to find the list of students whose name contains 4 characters using where() method of List collection using Linq?
Submitted by Nidhi, on August 28, 2020
Here we will find the list of students whose name contains 4 characters. Here we will use the where() method. In the where() we will specify the condition to select student names contains 4 characters. To use where() method we need to import "System.Linq" and "System.Collections.Generic" namespaces.
Program:
The source code to find the list of students whose name contains 4 characters, is given below. The given program is compiled and executed successfully on Microsoft Visual Studio.
//Program to find a list of students whose name contains
//4 characters using Where() method of List collection using Linq.
using System;
using System.Collections.Generic;
using System.Linq;
class Demo
{
static void Main(string[] args)
{
List<string> Students = new List<string>();
Students.Add("Amit");
Students.Add("Sumit");
Students.Add("Ayan");
Students.Add("Shaurya");
Students.Add("Sanaya");
IEnumerable<string> result = Students.Where(stu=>stu.Length==4);
Console.WriteLine("Student Names:");
foreach (string name in result)
{
Console.WriteLine(name);
}
}
}
Output:
Student Names:
Amit
Ayan
Press any key to continue . . .
Explanation:
In the above program, we created a list and then add student names to the using Add() method.
IEnumerable<string> result = Students.Where(stu=>stu.Length==4);
In the above code, where() method is used to select student according to a specified condition. Here we find the students whose name contains 4 characters.
Console.WriteLine("Student Names:");
foreach (string name in result)
{
Console.WriteLine(name);
}
Here we printed the select student name using "foreach" on the console screen.
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