how to learn java well

as title
I am a beginner .
I want to learn java well.
So , would anyone tell me what I can do?
thanks very much.

Hi Ropoty,
I am very new to Java also and have been working my way through the Sun Java Tutorial. It is free and can be done online or downloaded to your PC. Go to: http://java.sun.com/docs/books/tutorial/
Good luck, and happy coding.
[ February 17, 2004: Message edited by: Stuart Chambers ]

Hi Ropoty,
Best thing to do, is find as much tutorials online as posible, to keep it cheap, make some programs up, you will need a JDK, get one from sun, make some programs up to get to grips with the language, and ask as many questions as you like in javaranch, we don't bite (that hard!!

)
Good luck
Davy
[ February 18, 2004: Message edited by: Davy Kelly ]
[ February 18, 2004: Message edited by: Davy Kelly ]

ropoty ropoty,
Welcome to JavaRanch!
We ain't got many rules 'round these parts, but we do got one. Please change your display name to comply with The JavaRanch Naming Policy.
Thanks Pardner! Hope to see you 'round the Ranch!

Write lots of programs.
Post questions and answers in forums like this one.
Here is a list of free on-line Java tutorials and books that I have found useful:

Sun's Java Tutorial

Introduction to Computer Science using Java by Bradley Kjell

Introduction to Programming Using Java by David J. Eck

Dick Baldwin's Java Programming Tutorials

Interactive Programming In Java by Lynn Andrea Stein

Bruce Eckel's Thinking In Java

JavaRanch's own Campfire Stories

Allen B. Downey's How To Think Like A Computer Scientist

Practice, practice, practice!
The only way to learn a new skill well is to DO IT. In this case, you need to write your own programs. I would start out simple at first and build up in complexity as your understanding increases. You can make up your own project ideas, but unless you've programmed in other languages before and have some idea how simple (or complicated) a program to be, this may not be the best place to start. I believe Java Ranch here has some example problems. You only have to pay them money if you want them to critique it for you. You should also check out TopCoder. They sponser coding competitions and post the questions used as practice problems. You can use their problem statements to write your own programs that solve them.
I'm sure there are other Internet resources for typical programming problems and puzzles. Just search around if you need any ideas about what to practice.

http://www.amazon.com/exec/obidos/tg/detail/-/0596004656/104-4483636-0082369?v=glance
buy this book