The array is a user-defined reference type Data type. Which is used to store the multiple values of the same data type in a single variable.
The array is used to store the homogeneous values which means multiple values of the same datatype
There different types of arrays are available. Below is the list
- Single Dimension Array
- Multi Dimension Array
- Jagged Array
Single Dimension Array
It is the simplest data type in c# used to store only a single row to store the data.
Syntax:
Datatype[] arrayname= new Datatype[Size];
Below is the list of examples on the array.
- Simple Array iteration of the integer Array
- Sum of the given Integer Array
- Simple Array iteration using read the size and entering the custom values
- Finding the Largest Number in the given Array Integer
- Finding the least Number in the given Array Integer
- Swap two numbers without using the third variable
- Swap the twp numbers using third variables
- Find the sum of even numbers and odd numbers in the given Array
- Find the count of even numbers and odd numbers in the given Array
- Find the First Largest Number and Second Largest Number in the Given Array
- Find the First Lowest Number and Second Lowest Number in the Given Array
- Program to swap the Minimum Value and Maximum Value in the given Array
Simple Array iteration of the integer Array :
using System; namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ int[] arr = new int[5] {10,20,50,90,100 }; for (int i=0;i<=arr.Length-1;i++) { Console.WriteLine(arr[i]); } Console.ReadLine();
} |
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Sum of the given Integer Array :
using System; using System.Collections.Generic; namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ int[] arr = new int[5] { 10,20,30,40,50}; int sum = 0; Console.WriteLine("before sum of the array -->
sum= "+sum); for (int i=0;i<=arr.Length-1;i++) { sum = sum + arr[i]; } Console.WriteLine("sume of the given integer Array
--> sum = "+ sum); Console.Read();
}
} |
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Simple Array iteration using read the size and entering the custom values:
using System; namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ Console.WriteLine("Enter Array Size"); int size=int.Parse(Console.ReadLine()); int[] arr= new int[size]; for (int i=0;i<=size-1;i++) { Console.WriteLine("Enter
Values"); arr[i] = int.Parse(Console.ReadLine()); } for (int i=0;i<=size-1;i++) { Console.WriteLine(arr[i]); } Console.ReadLine();
}
} |
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Finding the Largest Number in the given Array Integer :
using System; namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ Console.WriteLine("Enter Array Size Value"); int size = int.Parse(Console.ReadLine()); int[] arr = new int[size]; int max = 0;
for (int i=0;i<=size-1;i++) { Console.WriteLine("Enter
Value"); arr[i] = int.Parse(Console.ReadLine()); if (arr[i]>max) { max = arr[i]; } } Console.WriteLine("Largest Number in the given
Array__ "+max); Console.ReadLine();
}
} } |
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Finding the least Number in the given Array Integer :
using System; using System.Collections.Generic; namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ Console.WriteLine("Enter Array Size"); int size = int.Parse(Console.ReadLine()); int[] arr = new int[size]; int min = 0; Console.WriteLine("Enter Number"); for (int i=0;i<=size-1;i++) { arr[i] = int.Parse(Console.ReadLine()); } for (int i=0;i<=size-1;i++) { if (arr[i]<min) { min = arr[i]; } } Console.WriteLine("the lasgest Numer is "+min); Console.ReadLine();
}
} } |
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Swap two numbers without using the third variable :
using System; using System.Collections.Generic; namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ int a = 9999; int b = 1111; Console.WriteLine("swap the 2 numbers without
using third variable"); Console.WriteLine("the given 2 variables are a=
"+a+" and b= "+b); a = a + b; b = a - b; a = a - b; Console.WriteLine("after swap the values are a=
"+a+" and b= "+b); Console.ReadLine();
}
} } |
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Swap the twp numbers using third variables :
using System.Collections.Generic; namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ int a = 9999; int b = 1111; int c = 0; Console.WriteLine("swap the 2 numbers without
using third variable"); Console.WriteLine("the given 2 variables are a=
"+a+" and b= "+b); c = a + b; a = c - a; b = c - b; Console.WriteLine("after swap the values are a=
"+a+" and b= "+b); Console.ReadLine();
}
} } |
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Find the sum of even numbers and odd numbers in the given Array
namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ int[] arr = new int[5] { 1,3,6,7,4}; int evenSum = 0; int oddSum = 0; for (int i=0;i<=arr.Length-1;i++) { if (arr[i]%2==0) { evenSum = evenSum + arr[i]; } else { oddSum = oddSum + arr[i]; } } Console.WriteLine("even sum = "+ evenSum); Console.WriteLine("Odd sum = " + oddSum); Console.Read();
}
} |
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Find the count of even numbers and odd numbers in the given Array
| using System; using System.Collections.Generic; namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ int[] arr = new int[5] { 1,3,6,7,4}; int evenCount = 0; int oddCount = 0; for (int i=0;i<=arr.Length-1;i++) { if (arr[i]%2==0) { evenCount++; } else { oddCount++; } } Console.WriteLine("even Count = " + evenCount); Console.WriteLine("odd Count = " + oddCount); Console.Read();
}
} } |
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Find the First Largest Number and Second Largest Number in the Given Array :
using System.Collections.Generic; namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ int[] arr = new int[5] { 1,3,6,7,4}; int firstLargestNumber = 0; int secondLargestNumber = 0;
for (int i = 0; i <= arr.Length - 1; i++) { if (arr[i]>firstLargestNumber) { firstLargestNumber =
arr[i]; } } for (int i = 0; i <= arr.Length - 1; i++) { if (arr[i] > secondLargestNumber &&
firstLargestNumber != arr[i]) {
secondLargestNumber = arr[i]; } } Console.WriteLine("First Largest Number = "+ firstLargestNumber); Console.WriteLine("Second Largest Number = " +
secondLargestNumber); Console.ReadLine();
}
} |
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Find the First Lowest Number and Second Lowest Number in the Given Array :
using System.Collections.Generic; namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ int[] arr = new int[7] { 1,3,6,7,4,2,9 }; int firstLowestNumber = 9; int secondLowestNumber = 9; for (int i = 0; i <= arr.Length - 1; i++) { if (arr[i]< firstLowestNumber) { firstLowestNumber = arr[i]; } } for (int i = 0; i <= arr.Length - 1; i++) { if (arr[i] < secondLowestNumber &&
firstLowestNumber != arr[i]) { secondLowestNumber =
arr[i]; } } Console.WriteLine("First Largest Number = "+ firstLowestNumber); Console.WriteLine("Second Largest Number = " +
secondLowestNumber); Console.ReadLine();
}
} |
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Program to swap the Minimum Value and Maximum Value in the given Array :
using System; using System.Collections.Generic; namespace ConsolePractice {
class Program
{
static void Main(string[] args)
{ int[] arr = new int[6] { 0,1,2,3,4,5 }; for (int i=0; i <= arr.Length - 1;i++) { Console.Write(" "+arr[i]); } Console.WriteLine("-----"); int min = 0; int max = 0; int minIndex = 0; int maxIndex = 0; for (int i=0;i<=arr.Length-1;i++) { if (max<arr[i]) { max = arr[i]; maxIndex = i; } } for (int i=0;i<arr.Length-1;i++) { if (min>arr[i]) { min = arr[i]; minIndex = i; } } arr[maxIndex] = min; arr[minIndex] = max; for (int i=0;i<arr.Length;i++) { Console.Write(" "+arr[i]); } Console.ReadLine();
}
} |
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