JAVA is general-purpose computer programming language which is concurrent, class-based, object-oriented and specifically designed to have very few implementation dependencies. It intends to let programmers or developers to ‘write once and run anywhere’. Java codes can run on all platforms that support Java without the need of recompilation. If you have no programming experience but want to know how to learn Java, This article might be helpful. There were five primary goals in the creation of the Java language which are as follow:
- It must be simple, object-oriented and familiar.
- It must be robust and secure.
- It must be architecture-neutral and portable.
- It must execute with high performance, and
- It must be interpreted, threaded and dynamic.
How to learn JAVA without any programming experience?
Before giving an answer to the above question I would like to ask you that do a newly born child have any experience of learning a language. No, right. But we obviously know that the child will learn to speak from their parents after a few months or even a year of struggle, Right?
Here, we can realize that the child has faced some difficulty while learning his/her mother tongue but it’s not impossible. So, learning JAVA can be viewed from the same perspective. Yes, of course learning JAVA without any programming experience will be hard but it’s not impossible at all.
If you are thinking to become an expert in JAVA in quite a few months then you should have to change your mindset because while learning JAVA you might get frustrated after not achieving the desired goal that you have set.
You can learn some basics of JAVA in a few months or even in a few weeks but it does not mean that you know most of the programming at all. So, you should have extreme devotion and patience while learning JAVA or any other programming languages.
Well, you may have found on the internet some of the stuff like ‘Learns JAVA in one week’ with the hooky title. That stuff is cool to its own perspective but what they teach you is the very basic of JAVA. If you want to be an expert in JAVA it would take years of practice and learning.
So, hope you understand what I am trying to say here is that you can learn Java without frustration after having a strong mindset only. After learning this hope you will prepare your mindset and you will not be like most of the other beginners who become very enthusiastic at first but stop learning Java after facing some difficulty.
So, now after knowing that learning Java is possible though there is no any programming background and by preparing mindset, it would be better to set the goal with the stepwise process. Remember that your goal should not be too high at a time but you can make progress setting mini goal/objectives at a time.
Well, this is the method of learning by breaking the topic. The only thing that I want to share here is that not only learn Java from hard working but also in smarter way too so that you can take much benefit than you expected.
If you are thinking that you want to learn Java but still not clear about why you should start to learn Java, then here are some reasons you need to know to make you clear about why you should learn Java.
The first reason that why you should learn Java is because Java is fully developed, complete and mature language and you can learn it from your own home. There are lots of books, eBooks, online courses that you can take to start learning Java right now. Cool, Right?
The second reason is that there are lots of potential jobs which can be available for you if you learn Java. You know the most popular Androids apps are coded in Java language.
So, yeah if you learn Java well then there are lots of jobs available for you right on your footstep. The third reason is that in comparison to other programming languages Java programming is simple to program and easy to understand.
So, due to the above three main reason, you should have to learn Java. Hope you might get your confusion clear that why you need to learn Java.
Java programming is not only limited to app development, along with these there is the huge scope of Java programming on financial transactions and research activities.
Let’s briefly describe here about Java to make you believe that you can learn Java. Well, Java is a robust object-oriented programming language. Its syntax is generated from the core programming languages C/C++.
So, Java is better than these core programming languages and easy to understand too. This language has huge libraries and more human-friendly to code than those core programming languages.
So, after knowing all this hope you will not hesitate to learn Java. Though it is hard to learn in the beginning, the important role is played by your self-discipline, devotion and the way you learn the Java. So, don’t let anything to stop your way to learn Java, guys.
You don’t need to be an expert on core languages like C/C++, the only thing you need to invest here is your time and effort. So, what would stop you now? So, wake up guys, learn this amazing programming and began to explore it right now. If there is a will, there is a way. It’s your decision now. Don’t let to make regret yourself.
How long would it take to learn JAVA completely?
Well, this question’s answer is difficult to answer from my point of view. Before answering this question, let me tell you one of the short stories that perfectly matches with the question above.
Once upon a time, one Shaolin temple student goes through the forest to reach another village, where he had never visited before. While moving into the woods, he finds the way is longer than he expected.
In the mid of the way, he finds one of the Buddhist Monk heading towards the same village. The student asked the monk that how long it will take to reach the next village. But the monk did not reply to the question.
The student thinks that he might not have heard his question and ask again the same question. Again, the monk stares at him and continue to walk without answering the question.
The student got angrier with the behavior of monk and without walking with him he began to take a large footstep and move ahead of the monk. Finally, the monk answered the question and tell the student that he will reach the village in about half an hour with that pace.
So, what is the moral of this story? The moral is that the time to reach your destination or goal depends upon your speed to reach that goal. The same thing can be applied to learning JAVA as well. Of course, it differs from person to person.
One person can read the book in one week but another person may read the same book in the two weeks. So, you might understand what I am trying to say. The time frame to learn Java is completely depended on your learning process and schedule.
But if we try to be specific by collecting the experience of some of the programmers, most of the beginner level JAVA programmers reveals that they take about 1 to 2 years to get somewhat used with the JAVA.
So, from those experiences of programmers, we can say that generally, it would take a year or more to become used to with JAVA programming.
“Live as if you were to die tomorrow. Learn as if you were to live forever.”- Mahatma Gandhi. From this one of the famous quotes what I am trying to say is that don’t just stick to the time frame to learn Java but make learning a passion.
It is not bad to set the deadline to finish some goal but if you create passion then you can grab more and become more curious to learn more.
To learn the JAVA within the time frame you prefer, you can prepare your own specific schedule. For example, you can be determined to learn each topic of JAVA within one week. Though some of the topics of JAVA is really hard to finish in the time frame, if you push yourselves you can increase your efficiency.
Though how uncomfortable it is, try to write the code. Think about it try to be creative. Never make a rote learning, try to understand the concept of programming.
Try to figure out different code with a different perspective. Don’t be too unsocial, make some programmers as a friend. Try to be around with them. Because you know the circle of friends and their thinking also affect your learning and can motivate you to finish the learning process of JAVA within your time frame.
Attend the seminars, meetings, conferences related to programming to increase your level of understanding. What I am trying to say is that put your whole concentration to learn Java and try to create the environment so that you can boost your learning.
Always try to challenge yourself. Prepare a good plan and strategy to learn Java. Make a habit to learn different books constantly. If you go around if you find some spare time try to figure out the new scope or possibilities of JAVA programming.
Always push yourself. Do not let yourself be satisfied with what you are today. Always try to re-fine yourself and try to sharpen your skill in JAVA.
“There is no end to education. It is not that you read a book, pass an examination, and finish with education. The whole of life, from the moment you are born to the moment you die, is a process of learning.”- Jiddu Krishnamurti.
So, if you think how long it will take to learn Java, the answer is in the above quotes. Learning has no ending. You can create some pretty cool application with JAVA in a couple of years but it does not mean you are an expert. Your learning on JAVA continues as long as your brain continues to work.
Important Topics of Java to be focused while learning
From the above writings, we can conclude that Java is a vast programming language. It requires a huge investment of time to learn the language completely. Among the huge topics, here we will discuss the most important topics that are vital to increasing your horizon of programming knowledge. Core Java is the basic foundation for Java. The below-mentioned topics are the most important ones that should not be missed.
- Java Basics:
The basic introductory knowledge of Java Programming language is the first and foremost topic that should be and must be learned. The basic concept of the language is a must before entering into core topics.
These terms are often encountered in other programming languages like C and C++. If you have learned other such languages, it will be quite easier for you to start.
- Object Oriented Concept:
After you have been familiar with the basic terms, you can increase further knowledge about Java by going through object-oriented concepts.
This includes; objects, classes, Inheritance, Constructors, Abstraction, Abstract classes, Function overloading, function overriding, Interfaces, Polymorphism, etc. These topics help you to understand and go deeper into Java.
- Java Collections:
Learning a Programming language is always fun if you go through the topics and sub-topics one by one thoroughly. Once you are familiar with the basic terms and then object-oriented conceptual terms, you can broaden your knowledge by going through the Java Collections.
The important terms are collections, threads, queue, sets, XML file operations, etc. This basic information about these terms gives a well stable foundation to raise your empire of programming skills.
- Java Performance Tuning:
Now, most of the Java programmers lack knowledge on Java Performance Tuning, which is a must for becoming a good program developer. In fact, for 5-6 years experienced programmer, it is necessary for you to understand these aspects of the program. You should be able to profile an application and be able to figure out why it is slow and the methods to make it faster.
- Network Programming:
One more important thing that you need to learn in Java is Network Programming. Java program developers need to understand and become competent in socket programming and network programming fundamentals.
The programmers should have knowledge of the difference between TCP and UDP which is considered as a part of basic knowledge.
Actually, concepts on Networking is very important which is lacking in the present programmers. So, to be competitive and to stand tall above the large group of developers, you need to have knowledge of each and every programming basic.
- Designer Level / Architect Level:
After learning the basics of Java programming, you have to go deeper and expose yourself to higher programming skills to stand tall amongst all other programmers.
To be able to find out whether a program’s code is wrong without even running the code, you have to understand the data flow in the code. This is only possible after you become able to read the design patterns.
A design pattern is a special tool to understand the integrity and fundamental flow of the series of codes. These skills can be learned from coming out of the basic Java boundary and earning conceptual programming techniques.
Applications of Java Programming Language
Java is the most popular object-oriented computer programming language at the present scenario. Java is the go-to language for mobile devices. You can use Java to build Android applications, Linux programs, web pages, etc.
It is one of the most versatile programming languages that allows you to write applications or web pages. Knowledge of Java largely benefits from acquiring jobs for software companies that develop mobile applications and web pages.
Besides this, there are many applicable fields in the present generation of Information Technology which are discussed below:
- Mobile / Android Applications:
To find out the applicable field of Java Programming Language, you should not go too far. The most prominent application of Java is the Android apps.
Those android apps are written in Java programming language with Google’s Android API that is similar to JDK. They are also scripted in Java using the Android Software Development Kit (SDK) or other environments. We already know how popular the Android OS in the ecosystem of smartphones is.
So, if you are a good Java programmer, or want to learn Java, you can have a great career as an Android App developer.
Java Platform and the Micro Edition (Java ME or J2ME) is a good platform framework to develop applications that are supported on all Java supporting devices. This includes featured phones and smartphones.
- Desktop GUI Applications
The next area where your knowledge of Java can be implied is Desktop GUI Applications. Java has been providing GUI development through various means like; Abstract Windowing Toolkit (AWT), JavaFX and Swing.
AWT is the most user-friendly one, which contains numbers of pre-constructed components like; menu button, list, and a various number of third-party components. Swing is a GUI widget toolkit which provides advanced components like trees, tables, scroll panes, tabbed panel and lists in addition to AWT.
JavaFX consists of a group of graphics and media packages. It also provides 3D graphics features with quick scripting of Java applets and applications. Nowadays, the demand of Java programmers on the development of desktop GUI applications is highly increasing and that demand is to be fulfilled by programmers like you.
- Web Applications
Java is a multipurpose object-oriented programming language that has been providing support for web applications through various mediums like; Servlets, JSPs, and Struts. It is the most applicable language that provides easy programming and higher security.
This has allowed a large number of government sectors like; health, social security, education, and insurance to use system applications that are based on Java. Java-based applications are also used in e-Commerce sectors using open-source e-Commerce platform i.e. Broadleaf.
- Enterprise Applications
Java has a prestigious position in Enterprises which is renowned language on which maximum applications are based. Java provides a special Enterprise Edition i.e. Java EE.
This edition is a very popular platform that has been providing API and runtime environment for scripting and running enterprise software, network applications including web-services.
Java has claimed that over 96% of enterprise computers have applications based on it. Most of the clients are attracted towards it due to its higher performance guarantee and faster computing.
- Embedded Systems
Embedded systems are a large market for the programming languages like Java, which has conquered all other possible sectors.
Embedded systems, from tiny chips to highly specialized computers, are components of the large electromechanical system that are dedicated to performing any specific task.
Electronic devices like; SIM cards, blue-ray disk players, DVD players, utility meters and televisions all use embedded systems that are based on Java. From a survey performed by Oracle, all of the Blu-ray Disc Players and most of the Television systems are employing Java.
- Web Servers and Application Servers
The Java system has already developed multiple Java web servers and application servers. Among them; Apache Tomcat, Simple, Jo, Rimfaxe Web Server (RWS) and Project Jigsaw dominate the web server space.
Similarly, WebLogic, WebSphere, and JBoss EAP dominate commercial application server space over the ecosystem of Java.
- Scientific / Mathematical Applications
Java is widely used by software developers for writing applications in all the fields over the world including scientific and mathematical operations in the fields of Engineering, Medical, and Education.
These programs have been preferred over others due to the fast and secure platform, higher accuracy and low maintenance rate.
Applications like MATLAB uses Java as part of the core system. These programs have made professional life easier and simple for the Mathematicians, Physicians, Engineers and others in need of such programs.
Resources that are required to start Java
Java is a programming language and computing platform popularly used by programmers throughout the world. It was not until 1995 Java was released and it immediately took over the programming world. It was first developed by James A. Gosling with Sun Microsystems.
There are lots of applications and websites that will not work unless you have Java installed. Java is fast, secure, and reliable. From laptops to datacenters, game consoles to scientific supercomputers, cell phones to the Internet, Java has proved to be boon for the digital world.
Once you have decided that you are passionate about learning the world’s leading programming language Java, a big round of applause to you. We believe that is indeed the greatest initiation. Now what? What are the resources that you need before starting Java? These questions might pop up as soon as the decision about learning Java has been taken.
So, this article is all about serving you best to broaden your knowledge to start Java in reference to the necessary resources that one needs to accumulate in the beginning. Without these resources, learning Java can be a little difficult. So, let’s begin!
- The concept of Object Oriented Programming (OOP)
Java is an object-oriented programming (OOP) language and hence, it is very important to conceptualize the topic “Object-Oriented Programming” itself.
It is believed that the concept of object-oriented programming emerged in the early 1970s but before that, procedural programming was mostly used in programming which is simply executing step by step procedure given in the form of instructions.
The major drawback of the procedural programming that led object-oriented programming to lead is it makes it difficult to establish a better understanding between data and functionality of the program.
Object-oriented programming emerged in the early 1970’s proving itself to be better than conventional procedural programming. As the name suggests, object-oriented programming uses real-world objects according to the nature of the program.
For example, for a program that stimulates pharmacy, the names of medicines are defined as objects of the program. As mentioned above, Java uses the concept of object-oriented programming and hence, it is very much essential for one to take a thorough knowledge of the same.
- Knowledge about C and C++ programming language
Since Java derives much of its syntax from the C and C++ programming languages, it is necessary that one has in-depth knowledge of the various syntaxes used in those programming languages.
One who is an expert in programming languages as C and C++ can do wonders in Java as well. The concept of the programming languages as such can serve as the foundation for learning Java.
Though it is not completely mandatory to learn C and C++ before Java, knowledge of C++, as well as C, makes it easier to understand Java and its syntaxes by using them as a reference.
- Computational learning
It is very facilitating if you enhance your knowledge of how complex problems can be solved. It is better to gain experiences in problem decomposition, pattern recognition, working with abstractions and creating algorithms.
Since these are the very basics of any coding not just Java, learning these techniques can really boost up one’s problem-solving skills.
Problem decomposition means simply breaking a complex problem into a number of subproblems. Combining the solutions of sub-steps gives the solution to an actual complex problem. Gaining expertise in this technique can help an individual to have a good take on Java coding.
Pattern recognition is the part of machine learning that enables identification of patterns based on regularities in the given data set. Abstraction is the process of omitting unwanted details to reduce the complexity of a program whereas an algorithm is a set of well-defined steps to solve any problem.
All in all, having extra experience in these topics can make learning Java the easiest job ever because Java works on these basics too.
- Java installation
Let’s not forget to mention the most important resource to kick off Java is the application itself as well as its installation.
Before starting with Java, one strictly as well as obviously needs to install the Java application in the device. There are two basic steps for Java installation.
Step 1: Download the JDK
The Java Development Kit (JDK) is a software development environment used for developing Java applications and applets.
It includes the Java Runtime Environment (JRE), an interpreter/loader (Java), a compiler (Javac), an archiver (jar), a documentation generator (Javadoc) and other tools needed in Java development.
The JDK (Java Development Kit) provides us with all the necessary elements required to install Java. So, the JDK should be downloaded and installed.
Once you’ve installed the JDK download on your computer, set up should be complete. But make sure that the versions are well supported with your operating system.
In order to install them more accurately, you need to have better knowledge of your Pc as well as the system requirement of the Java version you want.
Step 2: Set Up a Development Environment
Integrated Development Environment abbreviated as IDE is an application software that facilitates users with easy programming as well as debugging the Java programs.
This software helps users to code more easily with features such as syntax highlighting and code completion. There is a number of Java IDE’s available for an individual Java programmer.
You can easily get one of them even for free. Eclipse, NetBeans, Jcreater, Processing, BlueJ etc. are the commonly used IDE’s in the world.
If you downloaded the JDK with the any of the IDE, start IDE, and begin programming. You can also program using a simple text editor, and compile and run from the command line.
Many text editors now come with the ability to run and compile Java files, but you may need to tell the program where Javac.exe and Java.exe reside on your computer.
After the arrangement of all the above-written resources, you are ready to code now. Coding can be even easier with Java when you have everything you need. Once you have all the resources, you can code anything that best serves the world today.