By Suresh Mahadevan

Ruby is an interpreted language, able to saving programmers enormous time in the course of software improvement considering that no compilation and linking are important. it's perfect for writing text-processing purposes, server-side scripts, program prototypes, arithmetic, and for plenty of daily programming tasks.* studies Ruby's smart syntax and demonstrates why that makes it an ideal selection for starting programmers, and in addition exhibits how its multipurpose features make it a legitimate selection for knowledgeable builders* Explores Ruby's makes use of for prototyping, textual content processing, and different projects

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3). By default, on the Windows platform Ruby installs in the C:\Ruby folder. You can change the destination folder by clicking the Browse button and choosing the destination folder. 4. 4). By default, Typical is selected. The Typical setup installs the most common components of Ruby. You can choose compact or custom installation type, depending on your requirements. 5. 5). Before copying files, the wizard summarizes the options you have selected. You can change the selected options by going back to the appropriate page.

The cursor comes to the next line and waits for the user to type. Just type puts “Good Morning” and type the end-of-file character. 10). 10 Interactive Ruby. Normal Program Mode You execute Ruby programs from the command prompt. You type ruby followed by the file name. rb is the filename containing the Ruby code. /usr/local/bin/ ruby. This comment line tells UNIX that the program ruby should run the particular script. Summary In this chapter you learned that: ■■ The founder of Ruby is Yukihiro Matsumoto, also known as Matz to the Ruby community.

However, it cannot access the levying_fine function of the Accounts class. Therefore, you can say that the levying_fine function is hidden or encapsulated from the Library class. The earlier case study supports data encapsulation in the form of the levying_fine function and data abstraction in the form of the reading_charge and return_date functions. 19 20 Chapter 2 Implementing Object Orientation in Ruby Problem Statement Knowledge Inc. needs to keep track of all customer details, such as customer ID, customer name, and customer address.

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