using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Linq;
using System.Reflection;
class Salary {
int _id;
int _year;
double _salary;
public int ID {
get { return _id; }
set { _id = value; }
}
public int Year {
get { return _year; }
set { _year = value; }
}
public double SalaryPaid {
get { return _salary; }
set { _salary = value; }
}
}
class Employee {
int _id;
int _idRole;
string _lastName;
string _firstName;
public int ID {
get { return _id; }
set { _id = value; }
}
public int IDRole {
get { return _idRole; }
set { _idRole = value; }
}
public string LastName {
get { return _lastName; }
set { _lastName = value; }
}
public string FirstName {
get { return _firstName; }
set { _firstName = value; }
}
}
class Role {
int _id;
string role;
public int ID {
get { return _id; }
set { _id = value; }
}
public string Role {
get { return role; }
set { role = value; }
}
}
public class MainClass {
public static void Main() {
List<Employee> people = new List<Employee> {
new Employee { ID = 1, IDRole = 1, LastName = "A", FirstName = "B"},
new Employee { ID = 2, IDRole = 2, LastName = "G", FirstName = "T"},
new Employee { ID = 3, IDRole = 2, LastName = "G", FirstName = "M"},
new Employee { ID = 4, IDRole = 3, LastName = "C", FirstName = "G"}
};
List<Role> roles = new List<Role> {
new Role { ID = 1, Role = "Manager" },
new Role { ID = 2, Role = "Developer" }
};
List<Salary> salaries = new List<Salary> {
new Salary { ID = 1, Year = 2004, SalaryPaid = 10.00 },
new Salary { ID = 1, Year = 2005, SalaryPaid = 15.00 },
new Salary { ID = 1, Year = 2005, SalaryPaid = 15.00 }
};
var query = from p in people
join s in salaries on p.ID equals s.ID
where p.ID == 1
select s.SalaryPaid;
Console.WriteLine("Average Salary:");
Console.Write(query.Average());
}
}
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