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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5.  
  6. class MyList<T>{
  7. 	private class Node{
  8. 		public int No;
  9. 		public T Value;
  10. 		public Node Next;
  11.  
  12. 		public Node(T value){
  13. 			this.No = 0;
  14. 			this.Value = value;
  15. 			this.Next = null;
  16. 		}
  17. 	}
  18.  
  19. 	private int _count;
  20. 	private Node _root;
  21.  
  22. 	public MyList(){
  23. 		this._count = 0;
  24. 		this._root = null;
  25. 	}
  26.  
  27. 	public void Add(T value){
  28. 		Node newNode = new Node(value);
  29. 		newNode.No = this._count;
  30.  
  31. 		if(this._root != null){
  32. 			newNode.Next = this._root;
  33. 			this._root = newNode;
  34. 		}
  35. 		else this._root = newNode;
  36. 		this._count += 1;
  37. 	}
  38.  
  39. 	public T GetItem(int No){
  40. 		Node temp = this._root;
  41. 		while(temp != null){
  42. 			if(temp.No == No) return temp.Value;
  43. 			temp = temp.Next;
  44. 		}
  45. 		return null;
  46. 	}
  47. }
  48.  
  49. class Person{
  50. 	public String Name;
  51. 	public String Surname;
  52. 	public Person(String name, String surname){
  53. 		this.Name = name;
  54. 		this.Surname = surname;
  55. 	}
  56. }
  57.  
  58. class Ideone
  59. {
  60. 	public static void main (String[] args) throws java.lang.Exception
  61. 	{
  62. 		MyList<Person> persons = new MyList<Person>();
  63. 		persons.Add(new Person("Tomek", "Tomkowski"));
  64. 		persons.Add(new Person("Karolina", "Karolinowska"));
  65. 		persons.Add(new Person("Kasia", "Kasiowska"));
  66. 		persons.Add(new Person("Maciek", "Maciowski"));
  67.  
  68. 		Person selected = persons.GetItem(2);
  69. 		System.out.println(selected.Name + " " + selected.Surname);
  70. 	}
  71. }
Success #stdin #stdout 0.11s 320576KB
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Kasia Kasiowska
https://ideone.com/ntjrR5
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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