EXERCISE 1:
static void PrintSign(int number)
{
if (number > 0)
Console.WriteLine("The number {0} is positive", number);
else if (number < 0)
Console.WriteLine("The number {0} is negative.", number);
else
Console.WriteLine("The number {0} is zero.", number);
}
static void Main()
{ PrintSign(int.Parse(Console.ReadLine())); }
EXERCISE 2:
public static void grade(double grades)
{
if (grades >=2.00&& grades <= 2.99)
{
Console.WriteLine("Fail");
}
if (grades >= 3.00 && grades <= 3.49)
Console.WriteLine("Poor");
if(grades >= 3.50 && grades <= 4.49)
Console.WriteLine("Good");
if (grades >= 4.50 && grades <= 5.49)
Console.WriteLine("Very good");
if (grades >= 5.50 && grades <= 6.00)
Console.WriteLine("Exellent");
}
static void Main(string[] args)
{
double grades=double.Parse(Console.ReadLine());
grade(grades);
}
EXERCISE 3:
public static void Add(int a ,int b)
{
Console.WriteLine(a + b);
}
public static void Subtract(int a, int b)
{
Console.WriteLine(a- b);
}
public static void Devide(int a, int b)
{
Console.WriteLine(a / b);
}
public static void Multiply(int a, int b)
{
Console.WriteLine(a * b);
}
static void Main(string[] args)
{
string command=Console.ReadLine();
