Some special things about Ruby

Because of learning Java OOP before, I have some comparisons between Ruby and the language I've known:

     Similarities:

• Use Garbage Collection to clean all unused variables
• Focus on Object
• Use MVC
• Use OOP

     Differences:

• Ruby don’t need to compile, it runs directly!
• To declare a block of codes, now we use do…end to replace ‘{ }’. With “one-line or short block code”, we still use ‘{ }’ to perform block.
• Use ‘require’ to replace ‘import’
• All variables is private
• Everything is object
• No need to converse, no need to have type declaration.
• Method 'Constructor' is now method 'initialize'
• 'Null' is now 'Nil'
• The usage of '==' and 'equal()' in Java are now reverse in Ruby

My comments:

• Block is ‘supercool!’ in Ruby (special about yield, lambda, proc)
• Codes can be performed in super-short way - which make me confuse a lot.
• To understand Ruby, I think we must think like a ‘human’ (LOL)