Classes In Ruby

You creating class by:

>> class Satu

>>     def hello

>>         puts 'hello for you'

>>     end

>> end

Then you instantiate an object, write:

>> data = Satu.new

>> data.hello

Other example for creating an array:
>> class Satu
>>     def initialize name    # constructor
>>         @name = name    # @ is the class data
>>     end
>>     def setName name
>>         @name = name
>>     end
>>     def getName
>>         @name
>>     end
>> end

To instantiate an object, use:
>> data = Satu.new 'lady gaga'
>> puts data.getName    # print out 'lady gaga'
>> data.setName 'luna maya'  # 'luna maya' for getName

Classes In Ruby