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Updating the fractions activity to have a meaningful setter #7

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Updating the fractions activity to have a meaningful setter #7

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28 changes: 17 additions & 11 deletions week03/Fractions/Fraction.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,25 +5,31 @@ public class Fraction
private int _top;
private int _bottom;

public Fraction()
public int GetBottom()
{
// Default to 1/1
_top = 1;
_bottom = 1;
return _bottom;
}

public Fraction(int wholeNumber)
public int GetTop()
{
_top = wholeNumber;
_bottom = 1;
return _top;
}

public Fraction(int top, int bottom)
public void SetBottom(int bottom)
{
_top = top;
if (bottom <= 0)
{
Console.WriteLine("ERROR - Bottom cannot be less than or equal to zero.");
Environment.Exit(1); // Exit the program if bottom is zero to prevent division by zero errors.
}
_bottom = bottom;
return;
}

public void SetTop(int top)
{
_top = top;
return;
}
public string GetFractionString()
{
// Notice that this is not stored as a member variable.
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14 changes: 11 additions & 3 deletions week03/Fractions/Program.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,18 +5,26 @@ class Program
static void Main(string[] args)
{
Fraction f1 = new Fraction();
f1.SetBottom(5);
f1.SetTop(1);
Console.WriteLine(f1.GetFractionString());
Console.WriteLine(f1.GetDecimalValue());

Fraction f2 = new Fraction(5);
Fraction f2 = new Fraction();
f2.SetBottom(3);
f2.SetTop(2);
Console.WriteLine(f2.GetFractionString());
Console.WriteLine(f2.GetDecimalValue());

Fraction f3 = new Fraction(3, 4);
Fraction f3 = new Fraction();
f3.SetBottom(1);
f3.SetTop(0);
Console.WriteLine(f3.GetFractionString());
Console.WriteLine(f3.GetDecimalValue());

Fraction f4 = new Fraction(1, 3);
Fraction f4 = new Fraction();
f4.SetBottom(0); // This will cause an error because the bottom cannot be zero, and the program will exit.
f4.SetTop(3);
Console.WriteLine(f4.GetFractionString());
Console.WriteLine(f4.GetDecimalValue());
}
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