public void ArrayListOperations()
{
ArrayList arrayList = new ArrayList();
arrayList.Add(10);
arrayList.Add(89);
arrayList.Add(29);
arrayList.Add(-1);
arrayList.Add(15);
PrintArrayList(arrayList);
arrayList.Sort();
arrayList.Insert(2, 18);
PrintArrayList(arrayList);
Console.WriteLine("\nArraylist capacity\t" + arrayList.Capacity);
int hasElement = arrayList.IndexOf(23);
if (hasElement >= 0)
{
Console.WriteLine("Element is present");
}
else
{
Console.WriteLine("Element is not present");
}
arrayList.TrimToSize();
Console.WriteLine("\nArraylist capacity\t" + arrayList.Capacity);
int[] arr = { 14, 17 };
arrayList.AddRange(arr);
PrintArrayList(arrayList);
arrayList.InsertRange(3, arr);
PrintArrayList(arrayList);
arrayList.SetRange(7, arr);
PrintArrayList(arrayList);
}
static public void ArrayLists1()
{
var arlist1 = new ArrayList
{
1,
' ',
" Mustafa ",
3.14M,
true,
4.5,
null
};
var myQueue = new Queue();
myQueue.Enqueue("Mustafa");
myQueue.Enqueue(20);
arlist1.AddRange(myQueue);
arlist1.Insert(1, "Second Item");
ArrayList arlist2 = new ArrayList()
{
300, 400, 500
};
arlist1.InsertRange(3, arlist2);
Console.WriteLine("-*-*-*-*-* Before Remove *-*-*-*-*-");
for (var i = 0; i <= arlist1.Count - 1; i++)
{
Console.WriteLine(arlist1[i]);
}
Console.WriteLine("-*-*-*-*-* After Remove *-*-*-*-*-");
arlist1.Remove(null); //Removes first occurance of null
arlist1.RemoveAt(4); //Removes element at index 4
arlist1.RemoveRange(0, 2); //Removes two elements starting from 1st item (0 index)
foreach (var item in arlist1)
{
Console.WriteLine(item);
}
Console.WriteLine(arlist1.Contains(300)); // true
Console.WriteLine(arlist1.Contains("Mustafa")); // true
Console.WriteLine(arlist1.Contains(10)); // false
Console.WriteLine(arlist1.Contains("Bazı Bazı")); // false
arlist1.Clear();
}
static void Main(string[] args)
{
//Arraylist
ArrayList myList = new ArrayList();
myList.Add(1);
myList.Add("Hi");
ArrayList myList2 = new ArrayList();
myList2.Add("Hello");
myList.AddRange(myList2);
myList.Insert(1, 4);
ArrayList myList3 = new ArrayList()
{
10, 20, 30
};
myList.InsertRange(3, myList3);
for (int i = 0; i < myList.Count; i++)
{
Console.WriteLine(myList[i]);
}
Console.WriteLine(myList.Contains(10));
}
static void Main(string[] args)
{
//ArrayList
ArrayList al = new ArrayList();
int a = 101;
al.Add(a);
al.Add("This is a arraylist");
al.Add(2.3f);
al.Insert(3, "This is the forth index");
ArrayList al2 = new ArrayList();
al2.Add(102);
al.InsertRange(1, al2);
Console.WriteLine("ArrayList:");
Console.WriteLine();
foreach (var ele in al)
{
Console.WriteLine(ele + " ");
}
Console.WriteLine("The count of the arraylist is {0}", al.Count);
Console.WriteLine("The capacity of the arraylist is {0}", al.Capacity);
Console.WriteLine();
// Hash table
Hashtable ht = new Hashtable();
ht.Add(1, "one");
ht.Add(2, "two");
ht.Add(0.3f, 2);
ht.Add(4, null);
ht.Add("Hema", "vathi");
ht.Remove(2);
// ht.Clear();
Console.WriteLine("Hashtable:");
Console.WriteLine();
foreach (DictionaryEntry ele in ht) //ht.keys means only print a key values for values the viceversa is applied.
{
Console.WriteLine("{0},{1}", ele.Key, ele.Value);
}
String firstelement = (string)ht[1];
String str = (string)ht["Hema"];
Console.WriteLine("The first element in the hashtable is {0}", firstelement);
Console.WriteLine("The last element in the hashtable is {0}", str);
Console.WriteLine("The hash table contains a 0.3 is {0}", ht.Contains(0.3f));
Console.WriteLine();
//SortedList
Console.WriteLine("Sorted List:");
SortedList sl = new SortedList();
sl.Add(2, "two");
sl.Add(1, "one");
sl.Add(0, "zero");
sl.RemoveAt(0);
foreach (DictionaryEntry i in sl)
{
Console.WriteLine("{0},{1}", i.Key, i.Value);
}
Console.WriteLine();
//stack
Console.WriteLine("Stack:");
Stack s = new Stack();
s.Push("hello");
s.Push(102);
s.Push(102);
s.Push(.3f);
foreach (var item in s)
{
Console.WriteLine(item);
}
Console.WriteLine("The first element will be deleted is {0} ", s.Peek());
Console.WriteLine();
//Queue
Console.WriteLine("Queue:");
Queue q = new Queue();
q.Enqueue(34);
q.Enqueue("thirtyfour");
q.Enqueue(3.4);
q.Dequeue();
foreach (var item in q)
{
Console.WriteLine(item);
}
Console.WriteLine("The first element of the queue is {0}", q.Peek());
}
