List Add

Question

Add places an element at the end of a List . Above statement is given in the following website. What is meant by end of a List? Problem is highlighted. http://www.dotnetperls.com/list-add

Vulpes · Answer

Try this: using System; using System.Collections.Generic; class Program { static void Main() { // Add three objects to a List. List list = new List (); list.Add(new Test(1 2)); list.Add(new Test(3 4)); list.Add(new Test(5 6)); foreach(Test t in list) { Console.WriteLine(a = {0} b = {1} t.getNumberA() t.getNumberB()); } Console.ReadKey(); } class Test { int a; int b; public Test(int a int b) { this.a = a; this.b = b; } public int getNumberA() { return a; } public int getNumberB() { return b; } } }

Maha · Answer

Thank you for your help.

Maha · Answer

This incomplete program is given in the above website. How can it be completed to give following result? a = 1 b = 2 a = 3 b = 4 a = 5 b = 6 using System; using System.Collections.Generic; class Program { static void Main() { // Add three objects to a List. List list = new List (); list.Add(new Test(1 2)); list.Add(new Test(3 4)); list.Add(new Test(5 6)); Console.WriteLine(a = {0} b = {1} list.getNumberA() list.getNumberB()); } class Test { int a; int b; public Test(int a int b) { this.a = a; this.b = b; } public int getNumberA() { return a; } public int getNumberB() { return b; } } }

Maha · Answer

Thank you for your explanation.

Vulpes · Answer

It means that if the list already contains 'n' elements then the new element will be the 'n+1'th element. As well as adding elements to a List  you can also insert them at a particular index.