Looping Structures - Nested Loops

Introduction

CONCEPT: A loop that is inside another loop is called a nested loop. A loop can be nested inside another loop.

RectangularPattern.cs

int rows = 6;
int columns = 8;
char symbol = '*';
// print one row at a time
for (int currentRow= 1; currentRow<= rows; currentRow++)
{
    // print a single symbol for each column of the current row
    for (int currentColumn= 1; currentColumn<= columns; currentColumn++)
    {
        Console.Write(symbol);
    }
    // start a new line for each row
    Console.WriteLine();
}

TriangularPattern.cs

int baseSize= 8;
char symbol = '*';
for (int currentRow= 1; currentRow<= baseSize; currentRow++)
{
    for (int currentColumn= 1; currentColumn<= currentRow; currentColumn++)
    {
        Console.Write(symbol);
    }
    Console.WriteLine();
}

StairStep.cs

int steps = 6;
char symbol = '#';
for (int currentRow= 1; currentRow<= steps; currentRow++)
{
    for (int currentColumn= 1; currentColumn< currentRow; currentColumn++)
    {
        Console.Write(' ');
    }
    Console.WriteLine(symbol);
}

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