NIIT4考试复习资料整理\NIIT第四模块简答题考试重点

1. Consider that you want to store names of countries in a list. To do this

(1)First create an object of the ArrayList type;

(2)Second add the names of the required countries(Belgium, China, France, New

Zealand) one by one to this object by using the Add method;

(3)Finally, retrieve them by an index of country names.

Please write code for the task.

Ans:

ArrayList<string> arrayList=new ArrayList<string>();

Console.WriteLine(str);

}

2. Please write the result of following code.

Stack<string> numbers1 = new Stack<string>();

numbers1.Push("one");

numbers1.Push("two");

numbers1.Push("three");

numbers1.Push("four");

numbers1.Push("five");

Console.WriteLine("Peeking '{0}'", numbers1.Peek());

Peeking 'five'

Popping 'five'

Popping 'four'

Popping 'three'

Popping 'two'

Popping 'one'

1.use of Deep Clone、Shallow Clone(P1-48) (2956)

using System;

public class Invoice:ICloneable

{

this._amount=amount;

}

public Customer Customer

{

get

{

return this._customer;

}

set

{

{2}",this._invoiceNo,this._amount,this._customer.Name);

}

public object Clone()

{

Invoice inv=new Invoice(this._invoiceNo,this._amount);

Customer c=new Customer(this._customer.Name);

inv.Customer=c;

return inv;

}

static void Main(string[] args)

Console.WriteLine(invClone.ToString());

Console.Write("\nPress ENTER to exit...");

Console.ReadLine();

}

}

}

public string Name

{

get

{

return this._name;

}

set

{

this._name=value;

2.use of Coolection:Hashtable(P2-26)、List(P2-36) 、Stack /Queue(P2-17) (2956)

Stack:

Stack s1=new Stack();

s1.push("1");

s1.push("2");

s1.push("3");

Console.WriteLine(" "+s1.Pop());

}

Queue:

Queue q2=new Queue();

q1.Enqueue("1");

q1.Enqueue("2");

q1.Enqueue("3");

q1.Enqueue("4");

q1.Enqueue("5");