Speaking from experience, it is quite easy for any beginner to get lost in the world of coding as it is oh-so vast and dynamically expanding with every passing second. The moment you think you have figured one concept out, two more concepts are developed, it is a never-ending world of possibilities and scope. But that is exactly why in this article, we will be breaking down Java for beginners. After reading this article, you should be able to better comprehend Java, its concepts and how to navigate through the Java cosmos with much more ease. Let us begin!
What is Java?
Now that we have learned and understood the brief history and characteristic features of Java, let us proceed and look at how programming is done with Java for beginners.
Programming with Java for beginners:
Just like any other programming language, the first step would always be to install a compatible software in which you may proceed with coding. Some of the software or applications that I recommend for Java are IntelliJ Idea and Eclipse, but there are plenty of other programs that may help you achieve the same goal. After having done this, you can create a new file and then proceed to create a new class for that file which will then act as your Java file. If you are familiar with the syntax of other programming languages, then learning and understanding Java should be a breeze. A super easy thing you can do using Java is storing data. This can be done as follows:
int a = 9;
// Doing this will store the integer ‘9’ into ‘a’
// There are other data types like ‘int’ Some of them are as follows:
char b = “t”;
double c = 4.5;
long d = 6;
Data types such as int, double, float, char, etc. are called primitive types since they were the initial building blocks of what we know today to be a programming language. Just like most other coding scripts, Java also fundamentally revolves around objects, classes, keywords and functions. In the next few steps, we will show you how to use an object and print this object so that it is an executable program.
string name = “Jane Doe”;
// In the above statement, the term ‘string’ acts as an object and the term ‘name’ as the variable assigned to that objects. The name ‘Jane Doe’ is the value that will be stored inside the variable ‘name’
// Adding a period ‘.’ after a variable will open up a dialogue box that offers you all the possible functions that are executable with that variable. In this case, we chose the ‘.toUpperCase’ function which will turn all letters in the value of the ‘name’ variable into uppercase letters.
// ‘system.out.println ( content )’ simply commands the program to execute the content and show it as an output. All you need to do now is run the program.
One recurring pattern within Java which will help you identify different elements in its script is that most elements that are followed by brackets ‘( )’ are known to be ‘methods.’ A method is a tool that helps the coder execute various tasks the easier way. It is the intermediary between coders and the computer that translates what we want the elements of our code to do but in a simpler language.
Hopefully this has simplified the process of starting with basics of programming with Java for beginners. Using these methods and building your knowledge base of Java will help you create numerous programs, applications and projects with Java, even for beginners. As you learn and grow as a software developer or just an avid coder, you will come to realise that these building blocks help construct the entirety of any programming script and your way through the world of coding will be much more enjoyable and much more fruitful.