People, how to become a professional programmer in java ? Which book could you advice to learn and practice?

Question

Java beginner

Answer 1

Java Resources
Try making useful things with Java.
https://www.sololearn.com/discuss/580291/?ref=app

Answer 2

Head First Java
Good for beginners. But there are a lot of good books. Have a look at the great books from O'Reilly.
But most important is: Learn it by doing.

Answer 3

You thought it was all about Java programming skills to become professional programmer. You need to work hard to market yourself to become great Java Programmer. Here's what seems to succeed.
Get comfortable writing Java code in all OO concepts. If you are already good at Java, it is suggested to learn latest packages/API changes. You may come to know that an older version 10 lines of code can be simplified by just 1 or 2 lines using latest classes/methods.
Start coding for the specifications and compare with other coders.
To begin with, start with simple Java problems that typically require simple print statements without any knowledge on algorithms. Slowly improve your program skills with complex algorithms and solutions.
See more here:- http://crbtech.in/Java-Training/10-tips-become-better-programmer/