Proposed exercise
Create a statistical program which will allow the user to:
- Add new data
- See all data entered
- Find an item, to see whether it has been entered or not
- View a summary of statistics: amount of data, sum, average, maximum, minimum
- Exit the program
These options must appear as a menu. Each option will be chosen by a number or a letter.
The program must reserve space for a maximum of 1000 data, but keep count of how many data actually exist.
Solution
using System;
public class Statistics
{
public static void Main()
{
float[] numbers = new float[1000];
int count=0;
float max = 0.0f, min = 0.0f, total = 0.0f, searchNumber = 0.0f;
bool found;
int option=0;
do
{
Console.WriteLine("1. Add");
Console.WriteLine("2. Show");
Console.WriteLine("3. Search");
Console.WriteLine("4. Statistics");
Console.WriteLine("5. Exit");
option = Convert.ToInt32(Console.ReadLine());
if (option != 5)
{
switch (option)
{
case 1: // Add
Console.WriteLine("Enter a number: ");
numbers[count] = Convert.ToSingle( Console.ReadLine());
max = numbers[count];
min = numbers[count];
total += numbers[count];
count++;
if (max < numbers[count])
max = numbers[count];
if (min > numbers[count])
min = numbers[count];
break;
case 2: // Show
for (int i = 0;i < count;i++)
Console.WriteLine("{0} ", numbers[i]);
break;
case 3: // Search
Console.WriteLine("Enter a number for search: ");
searchNumber = Convert.ToSingle( Console.ReadLine());
for (int i = 0;i < count;i++)
if (numbers[i] == searchNumber)
found = true;
if (found)
Console.WriteLine("Number {0} found a amount of {1} "
,numbers[i]);
else
{
Console.WriteLine("Not found");
found = false;
}
break;
case 4: // Statistics
Console.WriteLine("Total data: {0}", count + 1);
Console.WriteLine("Sum: {0}", total);
Console.WriteLine("Average: {0}",total / ( count + 1 ));
Console.WriteLine("Min number: {0}", min);
Console.WriteLine("Max number: {0}", max);
break;
default:
Console.WriteLine("Error, option 1-5");
break;
}
}
}
while(option!=5);
}
}