LINQ Join Query

    class Employee  
    {  
      public int EmployeeID { get; set; }  
      public string EmployeeName { get; set; }  
      public int DeptId { get; set; }  
    }  
    class Dept  
    {  
      public int DeptId { get; set; }  
      public string DeptName { get; set; }  
    }  
      List<Dept> dept = new List<Dept>();  
      List<Employee> emp = new List<Employee>();  
      dept.AddRange(new Dept[]   
      {   
       new Dept{ DeptId=1, DeptName="IT" },  
       new Dept{ DeptId=2, DeptName="Engineering" }  
      });  
      emp.AddRange(new Employee[]  
      {  
       new Employee{EmployeeID = 1, DeptId = 1, EmployeeName="Sohail"},  
       new Employee{EmployeeID = 2, DeptId = 1, EmployeeName="Zeeshan"},  
       new Employee{EmployeeID = 3, DeptId = 2, EmployeeName="Zubair"},  
      });  
      emp.Join(dept, empRow => empRow.DeptId, deptRow => deptRow.DeptId, (selectEmpRow, selectDeptRow) =>  
       new  
       {  
         EmpId = selectEmpRow.EmployeeID,  
         EmpName = selectEmpRow.EmployeeName,  
         DeptName = selectDeptRow.DeptName  
       })  
       .ToList()  
       .ForEach(_ => { Console.WriteLine("{0} {1} {2}", _.EmpId, _.EmpName, _.DeptName); });