Comprehensive Ruby Programming

The ISP code example

Let's start by taking a look at a program that manages a blog:

class Blog  def edit_post    puts "Post edited"  end  def delete_post    puts "Post removed"  end  def create_post    puts "Post created"  endendblog = Blog.newblog.edit_postblog.delete_postblog.create_post 

Obviously, this program simply prints out some values in each method. If we run the program, you'll see that this code works properly:

Post edited Post removed Post created