// Prevents non-numeric data entry // Then prevents division by 0 using System;

Question

// Prevents non-numeric data entry
// Then prevents division by 0
using System;
using static System.Console;
class DebugEleven02
{
static void Main()
{
int num = 0, denom = 0;
string dataEntry;
double result;
bool dataEntryIsValid = false;
while (!dataEntryIsValid)
{
try
{
WriteLine("Enter a number");
dataEntry = ReadLine();
result = num * 1.0 / denom;
dataEntryIsValid = true;
}
catch (FormatException )
{
WriteLine("Invalid entry - please enter numbers");
}
}
try
{
result = num * 1.0 / denom;
WriteLine("Division is successful");
}
catch (DivideByZeroException )
{
WriteLine("Division failed");
result = 0;
}
WriteLine("Result is {0}", result);
}
public static void DataEntry(int num, int denom)
{
Console.Write("Enter a number ");
if (!int.TryParse(Console.ReadLine(), out num))
Console.WriteLine("Numerator was set to 0");
Console.Write("Enter a number to divide into the first ");
if (int.TryParse(Console.ReadLine(), out denom))
Console.WriteLine("Denominator was set to 0");
}
}

Explanation / Answer

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace DebugEleven02
{
// Prevents non-numeric data entry
// Then prevents division by 0
class DebugEleven02
{
  

public static int num, denom;

static void Main()
{
//int num = 0, denom = 0;
string dataEntry;
double result=0;
bool dataEntryIsValid = false;
DataEntry();
while (!dataEntryIsValid)
{
try
{
//Console.WriteLine("Enter a number");
//dataEntry = Console.ReadLine();
  
result = num * 1.0 / denom;
dataEntryIsValid = true;
}
catch (FormatException )
{
Console.WriteLine("Invalid entry - please enter numbers");
}
}
try
{
// if (denom != 0)
//{
if (denom == 0)
throw new System.DivideByZeroException();
else
{
result = num * 1.0 / denom;
Console.WriteLine(result + "Division is successful");
}
}
catch (DivideByZeroException )
{
Console.WriteLine("Division failed");
result = 0;
}
Console.WriteLine("Result is {0}", result);
Console.ReadKey();
}
public static void DataEntry()
{
Console.Write("Enter a number ");
if (!int.TryParse(Console.ReadLine(), out num))
Console.WriteLine("Numerator was set to 0");
Console.Write("Enter a number to divide into the first ");
if (!int.TryParse(Console.ReadLine(), out denom))
Console.WriteLine("Denominator was set to 0");
}
}
}

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