C# Program to Print Employees Whose Salary is Greater than Average of all Employees Salaries Using LINQ

Last Updated : 29 Dec, 2022

LINQ is known as Language Integrated Query and it is introduced in .NET 3.5. It gives the ability to .NET languages to generate queries to retrieve data from the data source. It removes the mismatch between programming languages and databases and the syntax used to create a query is the same no matter which type of data source is used. In this article, we will learn how to display a list of those employees’ details whose salary is greater than the average of all employee salaries.

Example:

Input:
{{emp_Name = "sravan", emp_Age = 21, emp_Salary = 26199},
 {emp_Name = "ramya", emp_Age = 22, emp_Salary = 19000},
 {emp_Name = "harsha", emp_Age = 23, emp_Salary = 25000},
 {emp_Name = "deepu", emp_Age = 23, emp_Salary = 23456},
 {emp_Name = "jyothika", emp_Age = 21, emp_Salary = 21345}}
Output:
 {emp_Name = "sravan", emp_Age = 21, emp_Salary = 26199}
 {emp_Name = "harsha", emp_Age = 23, emp_Salary = 25000}
 {emp_Name = "deepu", emp_Age = 23, emp_Salary = 23456}
 
Input:
{{emp_Name = "sravan", emp_Age = 21, emp_Salary = 26199},
 {emp_Name = "ramya", emp_Age = 22, emp_Salary = 19000}}
Output:
{emp_Name = "sravan", emp_Age = 21, emp_Salary = 26199}

Approach:

Declare three variables- employee name, age, and salary

Create a list of employees using list collection.

Using Query compute the average salary of all the employees.

Using where clause check each employee salary which is greater than average value.

Select that employees.

Display the result using ToString() method.

Example:

C#

// C# program to display the list of employees 
// whose salary is greater than average salary 
// of all the employees
using System;
using System.Collections.Generic;
using System.Linq;
 
class Employee{
 
// Declare three variables
// employee name, age, and Salary
string emp_Name;
int emp_Age;
int emp_Salary;
 
// Get the data
public override string ToString()
{
    return " " + emp_Name + " " + 
                  emp_Age + " " + emp_Salary;
}
 
// Driver code
static void Main(string[] args)
{
     
    // Create the list of 5 employees
    List<Employee> emp = new List<Employee>()
    {
        new Employee{ emp_Name = "sravan", emp_Age = 21, 
                      emp_Salary = 26199 },
        new Employee{ emp_Name = "ramya", emp_Age = 22, 
                      emp_Salary = 19000 },
        new Employee{ emp_Name = "harsha", emp_Age = 23, 
                      emp_Salary = 25000 },
        new Employee{ emp_Name = "deepu", emp_Age = 23, 
                      emp_Salary = 23456 },
        new Employee{ emp_Name = "jyothika", emp_Age = 21, 
                      emp_Salary = 21345 }
    };
 
    IEnumerable<Employee> result =
     
    // Getting the average of all the employees
    from e in emp
     
    // Total
    let total = emp.Sum(sal => sal.emp_Salary)
    let average = total / 5
     
    // Condition to get salary greater than 
    // average of all employees
    where e.emp_Salary > average
     
    // Select that employees
    select e;
 
    Console.WriteLine(" Employee-Name Employee-Age Employee-Salary");
    foreach (Employee x in result)
    {
        Console.WriteLine(x.ToString());
    }
}
}

Output:

Employee-Name Employee-Age Employee-Salary
sravan 21 26199
harsha 23 25000
deepu 23 23456

C# Program to Print the Employees Whose Name Started With Character 'S' Using LINQ

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C# Program to Print Employees Whose Salary is Greater than Average of all Employees Salaries Using LINQ

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