C# Answers

Console.WriteLine(value != null);

Console.WriteLine("int value: {0}", value);



explain these two codes specially int value :{0}

write a program to print the print the product of the first 10 even number.

write a program to display the highest 10 number entered.

write a program to enter a number from 1 to 7 and display the corresponding day of the week.

In C#, what would the output of this program be?
using System;
class DeclareArraysSample {
public static void Main() {
byte[][] s = new byte[3][];
for (int i = 0; i < s.Length; i++) {
s[i] = new byte[i+4];
}
for (int i = 0; i < s.Length; i++) {
Console.Write("{0} - {1} ", i, s[i].Length);
}
}
}

Write a windows C# application for a telephone provider service. The application contains a combo box holding the country dialing code for 10 different countries. The program will contain an array to hold the “per minute” charges that differ for each country. The application also contains a textbox to enter the number of call minutes to display (in a label) the total call price, or the minute price if no amount is entered in the textbox.


pllllllllllllllllz help me to do it i dont know how to make it !!!!

Could anyone please give me these two examples with zip?


1. Create a Form with a ListBox that lists at least four sports
teams of your choice. When the user places the mouse over
the ListBox, display a Label that contains single-game
ticket prices for each team. Th e Label disappears when the
user's mouse leaves the ListBox area. When the user clicks
a team name in the ListBox, display another Label that
contains the correct ticket price. Also change the BackColor
of the Form to the selected team's color. Save the project as
TeamSelector.

2. Create a Form that contains three Labels that hold famous
quotes of your choice. When the program starts, the
background color of the Form and each Label should be
black. When the user passes a mouse over a Label, change its
BackColor to white, revealing the text of the quote. Save the
project as DisplayQuotes.

Operation
• The user enters a string that consists of a last name, an account code, and a password in this format: name, account code, password. (Each value separated by a comma.)
• When the Parse button is pressed the application parses the string into name, account code, and password and displays the result in the controls shown.
Specifications
• The application should check that a value is entered into the text box (i.e. it is not left blank.)
Enhancement
• The application should check that the value that is entered includes two commas.
• The application should provide for the user entering one or more spaces after each comma and at the beginning and end of the string.