How to learn Java in a day?

In this section we are going to help in getting started with Java in a day. We will create a simple Hello world program and run it. We will also provide you the links to learn Java in a day.

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How to learn Java in a day?

In this section we are going to help in getting started with Java in a day. We will create a simple Hello world program and run it. We will also provide you the links to learn Java in a day.

Complete guide to learn Java in a day - Check how to you learn Java in a day?

You can learn by reading the book alone. But you can also learn it from our online tutorials which is must easier to learn as it comes with the handy example code. I will be able to learn the basics of Java in just one day and get get started with the Java programming. The basic of any of the programming language is required to learn Java in a day. You will have to find the time time to learn to  write, build examples and test along the way.

If you've ever worked with any of the programming language then you will find this tutorial much easier and you will be able to get started with the Java in just one day. What if you're not a developer? Then you have to spend some time to grasp the programming concept and then return back to learn Java.

How to learn Java in a day?

There's no single secret to learning Java and you have to understand the Java programming concepts. However, I'd like to lay out a few of the tools that I've found useful for learning Java, for example you can use Eclipse IDE to create and run your Java program. I'm going to teach you to use of Eclipse in programming and developing short code pieces, which will help you understand the programming in a much better way. I'm also going to include links to some other resources necessary to learn Java in a day. I've compiled them here to make them as easily accessible as possible on a single page.

Keep in mind that learning Java is going to take you a few hours to get the hang of basics of programming, then you have to setup your computer before compiling and running the code.

Start small. Start with something easy in Java programming. Think of the easiest way to write your program, and start there. If you're new to your IDE, make sure you try to do it in your code editor and see how it feels. If you're in a project, then try switching back and forth between your IDE and your main application.

You'll get better at things over time, and there's not a whole lot to lose. You will, however, want to make sure you start with small tasks. The trick is to get your brain used to picking different keywords in Java programming. Make sure you start with the small tasks such as write small programs and understand the Java programming language involved in writing that program.

The learn Java in a day tutorial series will teach you subjective Java, language basics and writing Java programs. You will also learn about the JVM and Java IDE to how to learn the basics of the JDK and JVM from scratch before diving in to more advanced topics.

Here are the topics you should learn in Java in one day:

In one day you have to first install JDK on your system and make it ready for developing programs. Then you can learn the steps of writing, compiling and testing the Java program. Finally learn the Java basics like variables, classes and OOPs principals of Java. After learning all these in one day you will be in better equipped with the initial knowledge to learn advanced topics in Java language.

Writing Hello world program in Java

First of all you have to create a text file with .java extension. Name it HelloWorld.java and add following code:

Hello world java program is the source code of the project and it is not my intention to give any real idea about the actual program, but just the idea in the beginning.

Example code of Hello World Class in Java:


package com.javajazzup;

public class HelloWorld {

	public static void main(String[] args) {
		System.out.println("Hello world");
	}

}

Above is the Hello world java program code and when you execute the code it will give following output:

Hello World Java Program

So what do you need? Well first we have to create HelloWorld class which contains main method. HelloWorld is pretty basic class, but very handy class because it can initialize initial values and values of variables. But in this example we have not initialized any variable. We have just printed the "Hello World" message on the console with following code:


System.out.println("Hello world");

To run it in Eclipse just right click and select "Run as Java program". Eclipse will compile your Java code and then run. This program will print "Hello World" message on the console.

The key to learning Java is to choose a learning approach that helps you in learning the basics of Java including its syntax, API and libraries available in Java.

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