Ring/Lessons/HelloWorld

Hello World The next program prints the Hello World message on the screen (std-out). see "Hello World" Run the program to run the program, save the code in a file, for example : hello.ring then from the command line or terminal, run it using the ring interpreter ring hello.ring Not Case-Sensitive Since the Ring language is not case-sensitive, the same program can be written in different styles .. tip:: It's better to select one style and use it in all of the program source code SEE "Hello World" See "Hello World" Multi-Line literals Using Ring we can write multi-line literal, see the next example See " Hello Welcome to the Ring programming language How are you? " Also you can use the nl constant to insert new line and you can use the + operator to concatenate strings .. note:: nl value means a new line and the actual codes that represent a newline is different between operating systems See "Hello" + nl + "Welcome to the Ring programming language" + nl + "How are you?" Getting Input You can get the input from the user using the give command See "What is your name? " Give cName See "Hello " + cName No Explicit End For Statements You don't need to use ';' or press ENTER to separate statements. The previous program can be written in one line. See "What is your name? " give cName see "Hello " + cName Writing Comments We can write one line comments and multi-lines comments The comment starts with # or // Multi-lines comments are written between /* and */ /* Program Name : My first program using Ring Date : 2015.05.08 Author : Mahmoud Fayed */ See "What is your name? " # print message on screen give cName # get input from the user see "Hello " + cName # say hello! // See "Bye!" .. note:: Using // to comment a lines of code is just a code style.