Notes

Rahul Rai - 2nd Feb 2023 Exercise
Solution 1:
using System;
class Class9
{
static void Main0(string[] args)
{
String[] arr = new string[] { "1", "2", "false", "", "3", "null", "4" };
String[] arr2 = new string[] { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
String[] res = new string[10];
foreach(string i in arr)
{
foreach(string j in arr2)
{
if(i.Equals(j))
{
Console.WriteLine(j);
}
}
}

}
}

Solution 2:
class Class10
{
static void Main22(string[] args)
{
int[] arr = new int[] { 83, 5, 6, 3, 2, 67, 83, 5, 7 };
Console.WriteLine("Before removing duplicates:");
foreach(int i in arr) Console.WriteLine(i);
int[] res = arr.Distinct().ToArray();
Console.WriteLine("After removing duplicates:");
foreach(int k in res) Console.WriteLine(k);
}
}

Solution 3:
class Class11
{
Boolean compare(int[] a, int[] b)
{
if (a.SequenceEqual(b)) return true;
else return false;
}
static void Main23(string[] args)
{
int[] arr1 = { 1, 2, 3 };
int[] arr2 = { 1, 2, 3 };
Class11 obj = new Class11();
if (obj.compare( arr1, arr2)==true)
{
Console.WriteLine("Equal");
}
else
{
Console.WriteLine("Not Equal");
}
}
}

Solution 4:
class Class12
{
static void Main(string[] args)
{
string str = "She sells sea shells on the sea shore ";
int l = 0, ctr =0, chctr=0;
while (l <= str.Length-1)
{
if (str[l]==' ' || str[l]=='n' || str[l] == 't')
{
ctr++;
}
l++;
}
Console.WriteLine("Number of words: " + ctr);
int i = 0;
while(i < str.Length)
{
if ((str[i]>='a' && str[i] <= 'z') || (str[i] >= 'A' && str[i] <= 'Z'))
{
chctr++;
}
i++;
}
Console.WriteLine("Number of characters: " + chctr);


}
}