Java

State Pattern in Design Pattern

Let's begin to learn what's State Pattern.

Java

Bridge Pattern in Design Pattern

Let's begin to learn what's Bridge Pattern.

Java

Prototype Pattern in Design Pattern

Let's begin to learn what's Prototype Pattern.

Java

Iterator Pattern in Design Pattern

Let's begin to learn what's Iterator Pattern.

Python

__str__ and __repr__ in Python

What's difference between __str__ and __repr__ ?