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摘要： Exceptions An exception or exceptional event is an event that occurs during the execution of a program that disrupts the normal flow of instructions. 阅读全文

摘要： Generic Classes and Case Study ArrayList is an implementation of a growable array in Java - java.util.ArrayList ArrayList uses to store objects Castin 阅读全文

摘要： 今天跟大家讲讲云计算、大数据和人工智能。这三个词现在非常火，并且它们之间好像互相有关系。 一般谈云计算的时候会提到大数据、谈人工智能的时候会提大数据、谈人工智能的时候会提云计算……感觉三者之间相辅相成又不可分割。 但如果是非技术的人员，就可能比较难理解这三者之间的相互关系，所以有必要解释一下。 云计 阅读全文

摘要： Software Design Patterns - Observer Pattern, Command Pattern Observer Pattern - For Broadcasting Messages to Subscribers Needs to “Notify/update ALL i 阅读全文

摘要： Benefits of Design Patterns Design patterns enable large-scale reuse of software architectures and also help document systems Patterns explicitly capt 阅读全文

摘要： Single Responsibility Principle (SRP) Just because you can, doesn't mean you should. Example SPR: The design violates SRP. Class Rectangle has two res 阅读全文

摘要： Single Responsibility Principle (SRP) Open-Closed Principle (OCP) Liskov Substitution Principle (LSP) Interface Segregation Principle (ISP) Dependency 阅读全文

摘要： UML - Sequence Diagram Sequence Diagram Shows: Objects or Actors (NOT classes or the system itself) as vertical dotted lines. (events as horizontal ar 阅读全文

摘要： UML - Class diagram A class diagram is used to visualize object-oriented classes and their relationships in our system. Class Linkages – 3 Types Compo 阅读全文

摘要： Object-Oriented Programming Fundamental - Part 2 Roles of Variable Developers often use a program variable for a specific purpose. If a variable has m 阅读全文