How to start learning basic Java

How to start learning Java.
Java is one of the most popular and widely used programming language. A platform is an environment that helps to develop and run programs written in any programming language.
Java is fast, reliable and secure. From desktop to web applications, scientific supercomputers to gaming consoles, cell phones to the Internet, Java is used in everywhere and every corner in the world.

About Java
Java is a simple language: Java is easy to learn and its syntax is clear and concise. Java has removed many confusing and rarely-used features e.g. explicit pointers, operator overloading etc. Java also takes care of memory management and it also provides an automatic garbage collector. This collects the unused objects automatically.
Java is a platform-independent language: The programs written in Java language, after compilation, are converted into an intermediate level language called the bytecode which is apart of the Java platform irrespective of the machine on which the programs run. This makes java highly portable as its bytecodes can be run on any machine by an interpreter called the Java Virtual Machine(JVM) and so that java provides ‘reusability of code’.
Java is an object-oriented programming language: OOP makes the complete program simpler by dividing it into a number of objects. The objects can be used as a bridge to have data flow from one function to another. We can easily modify data and function’s as per the requirements of the program.
Java is a robust language: Java programs must be reliable because they are used in both consumer and mission-critical applications, ranging from Blu-ray players to navigation systems.
Java is a multithreaded language: Java can perform many tasks at once by defining multiple threads. 
In the current world, Java is a very successful language and it is gaining popularity day by day.

Important tips and links to get you started
Understand the basics:
Learning the basics of any programming language is very important. It is the best way to begin learning something new. Don’t have any anxiety, begin learning the concepts about the language. Get familiar with the environment, and slowly you will get used to it within no time.
Patience is the key:
Learning Java will be overwhelming because of the volume of material about the language but be patient, learn at your own pace, don’t rush. Mastering Java is a process that takes time. And remember even the best coders would have started at some point. So it’s not a big deal, just do as much as you can and keep going. Give it your time. Patience is the key to success.
Practice Coding:
Once you have understood the basics, the best thing to do is to brush up your skills with regular practice. True knowledge comes only when you implement what you’ve learned, as is said ‘Practice Makes a Man Perfect’. So, code more than you read. This will build your confidence. Remember Perfect Practice makes you Perfect.
Read about Java regularly:
Continuously read about the various topics in Java and try to explore more. This will help to maintain your interest in Java.
Study in a group:
Group study is a better way to learn something. This way you get to know about new things about the topic as everyone presents their ideas and you can discuss and solve your coding problems on the spot. Get to know a common group of people who are willing to learn java.
Get help from a tutor and read as many books about java as possible. There are many good books in the market that will help you in learning java.
Setting up Java
You can download java from here. Here you will find different versions of java. Choose and download the one compatible with your operating system.
For detailed instructions for setting up of Java, refer to this article.

After you have set up the Java environment correctly, try running this simple program:

/* A Java program to print PreJava */
public class Demo{ 
    public static void main(String args[]) 
    { 
        System.out.println("PreJava"); 
    } 
} 

Output:
PreJava

If the environment is set up correctly and the code is correctly written, you will see this output on your console. That is your first Java program.Let's take a step to become a java programmer.