Function Parameters of Main, Sum VB.Net Exercise - Visual Basic Programming Course

Lesson

Functions

Exercise

Function Parameters of Main, Sum

Objetive

Write a Visual Basic (VB.Net) program named "sum", which receives two integer numbers in the command line and displays their sum, as in this example:

sum 5 3
8

Code

Imports System
Public Class exercise112
    Public Shared Sub Main(ByVal args As String())
        If args.Length = 2 Then
            Console.WriteLine(Convert.ToInt32(args(0)) + Convert.ToInt32(args(1)))
        Else
            Console.WriteLine("Two numbers, please")
        End If
    End Sub
End Class

More VB.Net Exercises of Functions

Functions: greeting + farewell
Write a Visual Basic (VB.Net) program whose Main must be like this: public static void Main() { SayHello(); SayGoodbye(); } SayHello and Say...

Function with parameters
Write a Visual Basic (VB.Net) program whose Main must be like this: public static void Main() { SayHello("John"); SayGoodbye(); } SayHello a...

Function returning a value
Write a Visual Basic (VB.Net) program whose Main must be like this: public static void Main() { int x= 3; int y = 5; Console.WriteLine( Sum(x,y...

Function returning a value V2
Write a Visual Basic (VB.Net) program whose Main must be like this: public static void Main() { __Console.WriteLine("\"Hello, how are you\" conta...

Function write centered
Write a Visual Basic (VB.Net) function to write centered on screen the text that is indicated as a parameter (supposing a screen width of 80 character...

Function write underlined
Write a Visual Basic (VB.Net) function able to write centered on screen the text that is indicated as a parameter (supposing a screen width of 80 char...

Function sum of array
Write a Visual Basic (VB.Net) program to calculate the sum of the elements in an array. "Main" should be like this: public static void Main() { in...

Function double
Write a Visual Basic (VB.Net) function named "Double" to calculate and return an integer number doubled. For example. Double(7) should return 14....

Function Double reference parameter
Write a Visual Basic (VB.Net) function named "Double" to calculate the double of an integer number, and modify the data passed as an argument. It must...

Function swap reference parameters
Write a Visual Basic (VB.Net) function named "Swap" to swap the values of two integer numbers, which are passed by reference. An example of use mig...

Function power local variables
Write a Visual Basic (VB.Net) function named "Power" to calculate the result of raising an integer number to another (positive integer) number. It mus...

Function recursive power
Write a Visual Basic (VB.Net) function that calculates the result of raising an integer to another integer (eg 5 raised to 3 = 53 = 5 × 5 × 5 = 125). ...

Function Fibonacci
Write a Visual Basic (VB.Net) program that uses recursion to calculate a number in the Fibonacci series (in which the first two items are 1, and for t...

Function modify a letter in a string
Write a Visual Basic (VB.Net) function named "ChangeChar" to modify a letter in a certain position (0 based) of a string, replacing it with a differen...

Function IsPrimeTarea
Write a Visual Basic (VB.Net) function named "IsPrime", which receives an integer number and retuns true if it is prime, or false if it is not: if ...

Function SumDigits
Write a Visual Basic (VB.Net) function SumDigits that receives a number and returns any results in the sum of its digits. For example, if the number i...

Function Factorial
The factorial of a number is expressed as follows: n! = n · (n-1) · (n-2) · (n-3) · ... · 3 · 2 · 1 For example, 6! = 6·5·4·3·2·1 Create a r...

Function Parameters of Main, Reverse
Write a Visual Basic (VB.Net) program named "reverse", which receives several words in the command line and displays them in reverse order, as in this...

Function GetInt
Write a Visual Basic (VB.Net) function named "GetInt", which displays on screen the text received as a parameter, asks the user for an integer number,...

Function tasks database
Write in Visual Basic (VB.Net) an improved version of the "tasks database", splitting it into functions....

Function Greatest value in a array
Write a Visual Basic (VB.Net) function which returns the greatest value stored in an array of real numbers which is specified as parameter: float[]...

Function factorial (iterative)
Write an Visual Basic (VB.Net) iterative (non-recursive) function to calculate the factorial of the number specified as parameter: Console.Write ( ...

Function WriteTitle
Write a Visual Basic (VB.Net) function named "WriteTitle" to write a text centered on screen, uppercase, with extra spaces and with a line over it and...

Function return value for Main
Write a Visual Basic (VB.Net) program in which you write a title (using the previous WriteTitle function) which the user will specify in command line....

Function CountDV
Write a Visual Basic (VB.Net) function that calculates the amount of numeric digits and vowels that a text string contains. It will accept three param...

Function IsAlphabetic
Write a Visual Basic (VB.Net) function that tells if a character is alphabetic (A through Z) or not. It should be used like this: if (IsAlphabetic ...

Function IsNumber
Write a Visual Basic (VB.Net) function that tells if a string is an intenger number. It should be used like this: if (IsNumber ("1234")) System.Co...

Function calculator, params of Main
Write a Visual Basic (VB.Net) program to calculate a sum, subtraction, product or division, analyzing the command line parameters: calc 5 + 379 ...

Function calculator, params and return value of Main
Write a Visual Basic (VB.Net) program to calculate a sum, subtraction, product or division, analyzing the command line parameters: calc 5 + 379 ...

Function MinMaxArray
Write a Visual Basic (VB.Net) function named MinMaxArray, to return the minimum and maximum values stored in an array, using reference parameters: ...

Function Reverse, recursive
Write a Visual Basic (VB.Net) program that uses recursion to reverse a string of characters (for example, from "Hello" it would return "olleH")....

Function WriteRectangle
Write a Visual Basic (VB.Net) function WriteRectangle to display a (filled) rectangle on the screen, with the width and height indicated as parameters...

Function Palindrome, iterative
Write an Visual Basic (VB.Net) iterative function to say whether a string is symmetric (a palindrome). For example, "RADAR" is a palindrome....

Function Palindrome, recursive
Write a Visual Basic (VB.Net) recursive function to say whether a string is symmetric (a palindrome). For example, "RADAR" is a palindrome....

Function GetMinMax
Write a Visual Basic (VB.Net) function named "GetMinMax", which will ask the user for a minimum value (a number) and a maximum value (another number)....

Function Multiply & MultiplyR
Write two Visual Basic (VB.Net) functions, Multiply and MultiplyR, to calculate the product of two numbers using sums. T he first version must be iter...