using System;

using System.Xml;

using System.Xml.Serialization;

using System.IO;

using System.Linq;

using System.Collections;

using System.Collections.Generic;

using System.Xml.Linq;

using System.Data;

using System.Collections.Specialized;

using System.Text.RegularExpressions;

using System.Globalization;

using System.Diagnostics;

using System.Globalization;

using System.Collections.Concurrent;

using System.Threading.Tasks;                   

​

using System;

​

public class People

{

    string name;

    int age;

    int height;

    public virtual void insertDetail(People stu)

    {

        Console.Write("Please enter name : ");

        stu.name = Console.ReadLine();

        Console.Write("Please enter age  : ");

        while(!int.TryParse(Console.ReadLine(), out stu.age))

        {

            Console.WriteLine("You enter characters! Please re-insert");

        }

        Console.Write("Please enter height: ");

        while(!int.TryParse(Console.ReadLine(), out stu.height))

        {

            Console.WriteLine("You enter characters! Please re-insert");

        }

    }

}

​

public class Class : People

{

    static People[] students = new People[5];

    public override void insertDetail(People stu)

    {

        Console.WriteLine("==================================");

        base.insertDetail(stu);

    }

​

​

    public static void Main(string[] args)

    {

        Class c = new Class();

​

        for (int i = 0; i < students.Length; i++)

        {

            students[i] = new People();

            c.insertDetail(students[i]);

        }

​

        Console.ReadKey();

    }

}