Let's make our program print a message. We're going to print out "Hello, World!" to the console.
A console (also known as terminal) is a text-only display or environment that enables us to interact with the computer.
To make our C# program print a message, we'll use a command called
The message you want to display goes inside the round brackets
(). We also need to put the message inside double quotes, like this:
In the code box on your notebook, type the following:
This line of instruction is called a statement. C# programs are made up of statements.
Statements end with a semicolon (
;). Think of a statement like a sentence - the semicolon is equivalent to the full stop or period.
If there were no full stops, the reader (in our case, the C# compiler) will have trouble understanding us, since it doesn't know where our sentences begin and end.
Next, run the program by clicking on the Execute button on the code box.
The output of the program will be shown at the bottom of the code box.
Congratulations! You have written and run your first C# program.
Let's display another message. Write
I'm learning C#! to the console.
After the first
Console.WriteLine(), press Enter to go to a new line and type the next statement.
Console.WriteLine("I'm learning C#!");
The full program should look like this:
Console.WriteLine("Hello, World!");Console.WriteLine("I'm learning C#!");
Run the program again by clicking the Execute button.
Your output should look like this:
As you may have noticed, statements run in sequence. If you placed
I'm learning C#! before the
Hello World! statement, the output would be different.