C# programming

• A variable is a named data type that can store a value of any type.
• 3 things to consider when naming a variable:

  -use consistent capitalisation

  -don’t start with a digit

  -Don’t include spaces
• Incrementing increases the value of an integer by 1 using ++
• When Declaring a variable give the variable a name and specify the type of data to be stored in the variable
• String is used for a combination of any keyboard character that appear on a keyboard, such as letters, numbers and symbols ( eg. Pa$$w0rd)
• Boolean variables are used to hold true or false values
• To print out the contents of a string use Console.WriteLine("string");
• Console.ReadLine() reads user input from the console and returns it as a string
• A char is a single character
• The difference between int and double is that int can only store whole numbers whereas doubles can store decimal places.
• The if statement allows us to test whether a condition is true or not.
• Sequence: a particular order in which related things follow each other. They’re performed on how they’re listed.
• Selection: when we choose one thing over another based on some criteria, like an IF statement.
• Iteration: repeating something multiple times using loops.
• To convert from string we do int userEntry= Convert. ToInt32(userEntry)
• Declaring a variable is the process of assigning a name to a variable.
• Initializing a variable means giving it a value
• Assigning a variable is the process of giving it a value. This is done using a single = sign.
• While is a type of loop that repeats a block of code a specified number of times based on the conditions
• The while statement executes as long as its condition remains true, so if the condition never becomes false, then the loop will continue forever.
• For loops are used when you know exactly how many iterations you want your program to perform.
• Else is used when a condition is not met, but the statement is still true.