//The Main Function for this Class
static void Main(string[] args)
{
ComparisionDeligateClass Sam = new ComparisionDeligateClass("Sameer", "NHES", 23);
ComparisionDeligateClass Apu = new ComparisionDeligateClass("Apurv", "Loyala", 68);
ComparisionDeligateClass Jay = new ComparisionDeligateClass("Jayaa", "Tagore", 18);
ComparisionDeligateClass[] students = { Sam, Apu, Jay };
//Displaying the ArrayList
DisplayArray(students);
//Sorting by the student name
Array.Sort(students, ComparisionDeligateClass.compareByName);
DisplayArray(students);
//Sorting by the roll number
Array.Sort(students, ComparisionDeligateClass.compareByRoll);
DisplayArray(students);
//Sorting the array by name + school
Array.Sort(students, ComparisionDeligateClass.compareByNameAndSchool);
DisplayArray(students);
Console.ReadLine();
}
//For the roll number
public static int compareByRoll(ComparisionDeligateClass obj1, ComparisionDeligateClass obj2)
{
return(obj1.Roll.CompareTo(obj2.Roll));
}
//For the combination of name and school
public static int compareByNameAndSchool(ComparisionDeligateClass obj1, ComparisionDeligateClass obj2)
{
return(String.Compare(obj1.School + obj1.Name, obj2.School + obj2.Name));
}