should I stop where I am, and come back to learn object orientation in Perl?

It really depends on what you're learning from, and your current level of knowledge; too many new ideas introduced too quickly will only leave you confused

Safest course is finish studying your java material, learn what its trying to teach you, then revisit perl, via Beginning Perl Chapter 11: Object-Oriented Perl, followed by the Objects chapter of Modern Perl

Compare similar concepts from one to the other, and revisit any parts that make you pause or raise questions

Is the concept of object oriented languages closely related enough for the knowledge of one to help set precedence for the knowledge of another?

Learning an object-oriented-language usually only teaches you the mechanics (axle, wheels, steering, engine ... how to make object, call methods, how method dispatch works...), it doesn't teach you how to drive (what should be an class/object, what properties/methods it should have ... object oriented design)

Some links about OOD

• Code Complete, Second Edition
• Code Complete, Second Edition
• http://en.wikipedia.org/wiki/SOLID_(object-oriented_design) (Single responsibility, Open-closed, Liskov substitution, Interface segregation and Dependency inversion)
• http://en.wikipedia.org/wiki/GRASP_(object-oriented_design) (General Responsibility Assignment Software Patterns)
• What You Can and Cannot Teach about Encapsulation
• Introduction to Computer Science using Java
• What Is Object-Oriented Design?
• ...

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