IDE users will find that their programs compile and run at the same time. If you get any errors when you compile it then you must go over this lesson again to find out where you made them. If you are compiling from the command line with Free Pascal then enter the following:fpc hello.pas If you are using an IDE then pressing CTRL+F9 is usually used to compile and run the program. When you compile a program, the compiler reads your source code and turns it into an executable file. You must now save your program as hello.pas.ĬompilingOur first program is now ready to be compiled. The Readln command will now be used to wait for the user to press enter before ending the program.program Hello begin Write('Hello world') Readln end. You must always remember to put it at the end of the line. The semi-colon at the end of theĢ line is a statement separator. This is because it is what is called a string.
You will see that the "Hello world" is between single quotes. The Write command prints words on the screen.program Hello begin Write('Hello world') end. Remember to put the full stop after the end.program Hello begin end. We are going to type the main body of the program between these 2 keywords. We will call our first program "Hello" because it is going to print the words "Hello world" on the screen.program Hello Type program and the name of the program next to it. We always start a program by typing its name. Your first programThe first thing to do is to either open your IDE if your compiler comes with one or open a text editor. You can find a list of other Pascal compilers at TheFreeCountry's Pascal compiler list. This tutorial uses the Free Pascal Compiler. What you will needBefore you start learning Pascal, you will need a Pascal compiler. Pascal has since become more than just an academic language and is now used commercially. It was made as a language to teach programming and to be reliable and efficient. It was named after Blaise Pascal, a famous French Mathematician. Learn Pascal Programming Tutorial Lesson 1 - Introduction to PascalAbout PascalThe Pascal programming language was created by Niklaus Wirth in 1970.
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