Java is among the most popular and versatile object-oriented programming languages in the world. The best thing about it is its low-level language, which means you can implement all algorithms using a simple approach. Furthermore, Java is the best programming language that you can work with if you want to be a developer, learn how to code, or create applications.
It is important to build and deploy secure Java programs using secure designs. However, some best designs can lead to insecure programs if the software developer does not know about the Java programming language’s potential security threats.
In this Java programming tutorial blog, you will learn everything that you need to know about the Java programming language for beginners and how you can become a secure Java programmer.
What Is Java?
Java is a general-purpose, object-oriented, and secure programming language developed by James Gosling in 1991. It was formally known as Oak, but Sun Microsystems changed its name to Java in 1995.
Editions of Java
There are three editions of Java, and each edition has different capabilities:
- Java Standard Edition (JSE): This is used for creating a program for desktop computers.
- Java Enterprise Edition (JEE): This is used to create large programs that run on a server and manage heavy traffic and complex transactions.
- Java Micro Edition (JME): This is used for developing applications for small devices like phones, set-top boxes, and appliances.
Types of Java Applications
There are four types of applications that you can create with the Java programming environment:
The Java standalone applications are also known as desktop alienations, and it uses GUI components like Swing, AWT, and JavaFX. These components usually comprise lists, buttons, scroll panel, menu, and so on.
Web applications are known as applications that run on the server. Java uses Servlet, Spring, JSP, and Hibernate technologies to create web applications.
These are applications that are distributed in nature.
You can use Java ME, a cross-platform for developing mobile applications that run across smartphones. Furthermore, Java is a platform used for App Development in Android.
Why Learn Java Programming?
If you are a student or working professional that wants to be a great Software Engineer, learning Java is quite important. Some of the advantages of learning the Java programming language are:
- Java is Object Oriented, which means you can easily extend it.
- Unlike lots of programming languages like C and C++, Java is compiled into platform-independent byte code. This code is distributed over the web and can be interpreted with Virtual Machine (JVM) and any platform that you run it.
- Java is quite easy to learn, and you can master it if you understand OOP’s basic concept.
- It can be used to develop virus-free and tamper-free systems using its security feature.
- Java tries to eliminate error-prone situations by emphasizing more on compile-time error checking and runtime checking.
- Java compiler can generate an architecture-neutral object file format, which means you can execute the compiled code on several processors with the Java runtime system.
Java Coding Tips Every Programmer Should Know
Java programming language is among the most popular coding languages worldwide, making it a great skill to learn if you want to start a programming career. Here are some tips to get you going in your learnig journey:
Learn the basics
The best place to start learning Java is knowing the basics of the programming language. If you are a complete beginner, learning the basics online will help kick-start your Java programming career.
According to old sayings, practice makes perfect. This means you can become a successful Java programmer if you are ready to study or practice. The best thing is that you can practice Java programming from home without any fancy software or facilities. Once you know the basics, the best thing is to start practicing.
Set your algorithm carefully
This is the process of putting yourself to the test. However, before you can set your algorithm, you must understand the basics of Java. Creating and solving a problem for yourself during your early days of practicing Java is a part of the learning curve. With an algorithm, you can tell your computer how to exactly do what you want it to do.
Do not forget to allocate memory
This is a useful tip when you are switching from C, C++ to Java. You will need to allocate memory in Java using a ‘new’ keyword because Java is a dynamic programming language. Some programming languages like C and C++ do not have memory allocation features, and you must be careful while handling array and object declaration in Java. If you do not use the new keyword, there will be a null point exception in the code.
Avoid creating useless objects.
You will be using up memory and processor speed from the system when creating an object in Java. However, object creation will be incomplete if you do not allocate memory to it. This is why it is best to keep the object requirements under check and avoid creating unwanted objects in the code.
Practice simple programs
You can start practicing Java using simple applications found online. This will help you set a great foundation that aids in the execution of new knowledge. Furthermore, if you write down all the program steps, it will help other beginners learn and understand Java.
Take your time to master the language
Java is similar to any programming language, and it can take time to master the programming language. This means you should not expect to learn everything about Java in a short time. As a beginner, you can learn the concepts of Java programming language by patiently practicing.
Learn Secure Programming with Java
Learn in detail about the common programming errors that you can encounter in Java with CodeRed. Furthermore, you will learn about security issues intrinsic to Java programming languages and its associated libraries. You will also learn about the poor programming practices that can lead to weak code and ways to secure code and maintain secure development practices during the software development life cycle.