Java Design Patterns
What are Java Design Patterns?
Java design patterns are not just standard protocols; they are powerful tools that empower developers, instilling confidence in their ability to select the best option from many choices while developing a software application. They provide a way to derive a standard solution, guiding developers to choose the most effective alternative confidently.
For instance, while traveling to a particular destination, there may be a ‘n’ number of routes. However, each route may provide different convenience and safety. Under such circumstances, a standard route exists, suggesting the best option.
Like the above real-world example, specific issues are common in programming while developing software applications. Hence, design patterns serve as a reliable guide, a silver lining in the often-complicated world of software development. Help Java programmers follow a standard framework and reduce the complexity of the task.
For instance, if a developer is building object-oriented software, one of the thumb rules is to prefer composition rather than the inheritance concept. It’s important to note that design patterns in Java are not strict rules or methods but valuable suggestions and recommendations. They provide a plan for developers to make informed decisions, mainly to solve problems.
While Java has several design patterns, one of the initial steps in mastering the art of programming begins with learning specific and essential Java patterns. These patterns are the crucial building blocks that help developers understand and simplify the software development process, inspiring them to delve deeper into their craft. However, getting to know and understanding all design patterns is essential for enhancing programming skills.
Classification of Design Patterns in Java:
There are several design patterns for a programming language to solve various issues. Based on their purpose, the design patterns are of different types. In core Java, they include creational, structural, and behavioral patterns.
Implementation of Design Patterns in Java:
Importantly, though several design patterns exist, the programmer must select only the required ones when developing software. So, instead of all, one must implement only specific design patterns according to the requirement.
Programmers can use the three types of design patterns for different requirements. For instance,
Creational Design Pattern:
Among the various design patterns, creational design patterns help programmers to create a new object.
Structural Design Pattern:
If two objects in Java are required to work in coordination, then the programmer should implement structural design patterns.
Behavioral Design Pattern:
A behavioral design pattern is necessary if two objects require communication or data interaction.
Advantages of Design Patterns in Java:
1) Design patterns offer a standardized approach to overcoming repeating problems that a programmer encounters while developing software.
2) Developers can reuse code by integrating design patterns, which makes maintenance easier and allows them to use the same code across multiple applications.
3) Using a standardized approach allows developers to develop easy-to-understand code, which helps new members understand the code more quickly.
4) Programmers can safely rely on design patterns to solve particular problems as their creation involves the experience and knowledge of software developers, who are experts in solving them.