C# For

For Loop

A 'for' loop is used to iterate over a range of values or elements. The syntax for a 'for' loop is as follows:

for (initialization; condition; iteration)
{
    // code to be executed
}

Initialization: This part is executed once at the beginning of the loop. It is typically used to initialize a loop control variable.

Condition: It is evaluated before each iteration. If the condition is true, the loop continues; otherwise, it exits.

Iteration: It is executed at the end of each iteration. It is typically used to update the loop control variable.

Here's a simple example of a 'for' loop that prints numbers from 1 to 5:

using System;

class Program
{
    static void Main()
    {
        for (int i = 1; i <= 5; i++)
        {
            Console.WriteLine(i);
        }
    }
}

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Explanation:

• Initialization: 'int i = 1' initializes the loop variable 'i' to 1.

• Condition: 'i <= 5;' is the loop condition, which means the loop will continue as long as 'i' is less than or equal to 5.

• Iteration: 'i++' is the iteration statement, which increments 'i' by 1 after each iteration.

⤏ Pre-increment ('++variable'): Increments the variable before using its value in the expression.
Syntax: int y = ++x;

⤏ Post-increment ('variable++'): Uses the current value of the variable in the expression and then increments it.
Syntax: int y = x++;

Note: You can customize the initialization, condition, and iteration based on the specific requirements of your loop.

using System;

class Program
{
    static void Main()
    {
        // Example of a 2D array
        int[,] matrix = {
            {1, 2, 3},
            {4, 5, 6},
            {7, 8, 9}
        };

        // Nested for loop to iterate over each element in the 2D array
        for (int i = 0; i < matrix.GetLength(0); i++)
        {
            for (int j = 0; j < matrix.GetLength(1); j++)
            {
                Console.Write(matrix[i, j] + " ");
            }
            Console.WriteLine(); // Move to the next line after each row
        }
    }
}

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