Java fundamentals for Android development

Danzan · Dec 18, 2013

Hello everyone!

I'm engineer of IT with background in C#, PHP and Java. My wish is to learn to develop Android applications. My question is, how much of Java do I need to know before I start learning Android? ATM I have passed basics in Java, primitive/reference types, collections, loops, casting, wrapping/unwrapping, exceptions, polymorphism, inheritance, (everything about OOP). Now I stopped at Swing GUI. Should I avoid it? Do I need listeners/events in Android apps? Threads? Can someone write me down what do I need to complete my Java knowledge before I start my Android journey? I would appreciate that!

(How much I

)

Thanks and BR,

M.

coolbud012 · Dec 19, 2013

Danzan said:
Hello everyone!

I'm engineer of IT with background in C#, PHP and Java. My wish is to learn to develop Android applications. My question is, how much of Java do I need to know before I start learning Android? ATM I have passed basics in Java, primitive/reference types, collections, loops, casting, wrapping/unwrapping, exceptions, polymorphism, inheritance, (everything about OOP). Now I stopped at Swing GUI. Should I avoid it? Do I need listeners/events in Android apps? Threads? Can someone write me down what do I need to complete my Java knowledge before I start my Android journey? I would appreciate that!

(How much I )

Thanks and BR,

M.

Yups you need everything that comes into Core Java except Swing and AWT.
Rest yes listeners/events and Threads are important topics to cover for Java.

You can Google the terms like " Java for android" you will get your answers....rest you can use any topic of java into Android...core or advanced it depends on your level of understanding and implementation...

Thanks

nikwen · Dec 19, 2013

Danzan said:
Hello everyone!

I'm engineer of IT with background in C#, PHP and Java. My wish is to learn to develop Android applications. My question is, how much of Java do I need to know before I start learning Android? ATM I have passed basics in Java, primitive/reference types, collections, loops, casting, wrapping/unwrapping, exceptions, polymorphism, inheritance, (everything about OOP). Now I stopped at Swing GUI. Should I avoid it? Do I need listeners/events in Android apps? Threads? Can someone write me down what do I need to complete my Java knowledge before I start my Android journey? I would appreciate that!

(How much I )

Thanks and BR,

M.

I recommend to read a tutorial on the basics of threads. It's not needed for basic apps though. You will also need anonymous classes. Writing to and reading from files might be useful if you need to store some data.
About everything else I would say: Start with Android and if you don't understand some Java things you find, read some tutorials about how they work. You should have the basic knowledge to start with Android now. You can always improve your Java later when you need it - if you need it.
Have fun.

Danzan · Dec 20, 2013

Thanks for the replies guys. I will pass Swing to see how it works (because of listeners and events), also threads and IO. I see ppl use SQLite for local db, so ill check that too later. One more thing, is there any Android framework? I see there's Spring for Android, but dunno should I use it or not.

BR :cowboy:

PicomatStudios · Dec 21, 2013

Danzan said:
Hello everyone!

I'm engineer of IT with background in C#, PHP and Java. My wish is to learn to develop Android applications. My question is, how much of Java do I need to know before I start learning Android? ATM I have passed basics in Java, primitive/reference types, collections, loops, casting, wrapping/unwrapping, exceptions, polymorphism, inheritance, (everything about OOP). Now I stopped at Swing GUI. Should I avoid it? Do I need listeners/events in Android apps? Threads? Can someone write me down what do I need to complete my Java knowledge before I start my Android journey? I would appreciate that!

(How much I )

Thanks and BR,

M.

One thing you don't tend to worry about normally with Java is memory usage. On Android, you do (you're running in a memory constrained environment). I'd do a little bit of reading on Garbage Collection and then a bit on Android's JVM (specifically it's worth understanding that its GC is non-compacting).

Danzan · Dec 21, 2013

PicomatStudios said:
One thing you don't tend to worry about normally with Java is memory usage. On Android, you do (you're running in a memory constrained environment). I'd do a little bit of reading on Garbage Collection and then a bit on Android's JVM (specifically it's worth understanding that its GC is non-compacting).

Well, I understand how Garbage Collector works with Java, but as I can see, its not same with Android. Thanks for the advice.
How about battery life?

jhun24 · Dec 23, 2013

books for java beginners

Anyone can suggest a book for java, i am a beginner in java but i know some of other language. Suggest a book that can teach me easily and faster, and deeply understand OOP language

Danzan · Dec 23, 2013

jhun24 said:
Anyone can suggest a book for java, i am a beginner in java but i know some of other language. Suggest a book that can teach me easily and faster, and deeply understand OOP language

Check out Head First Java, 2nd Edition.
I'm finishing it, very well explained Java and Object oriented programming as well.

nikwen · Dec 23, 2013

Danzan said:
Check out Head First Java, 2nd Edition.
I'm finishing it, very well explained Java and Object oriented programming as well.

+1

coolbud012 · Jan 3, 2014

Rest 1 more suggestion, if you are good with Android and OOPS then just jump into android and you can always post your issues in this forum and SO, we would be more than happy to help you.

Thanks

Danzan · Jan 4, 2014

coolbud012 said:
Rest 1 more suggestion, if you are good with Android and OOPS then just jump into android and you can always post your issues in this forum and SO, we would be more than happy to help you.

Thanks

With that good with Android you mean good in using Android OS? And with OOPS did you mean OOP? I'm not pretty clear with that...

Thanks for response

coolbud012 · Jan 4, 2014

Danzan said:
With that good with Android you mean good in using Android OS? And with OOPS did you mean OOP? I'm not pretty clear with that...

Thanks for response

Sorry what I meant is good with java programming and yeah OOPS mean OOP only.

P.S : Instead of posting and asking ppl just jump into it and start exploring it.

Thanks

Danzan · Jan 4, 2014

coolbud012 said:
Sorry what I meant is good with java programming and yeah OOPS mean OOP only.

P.S : Instead of posting and asking ppl just jump into it and start exploring it.

Thanks

You are right, posting and thinking only makes it more mysterious. (;

coolbud012 · Jan 4, 2014

Danzan said:
You are right, posting and thinking only makes it more mysterious. (;

Yupz right, even everyone would have their own opinion.

nilaydani · Jan 4, 2014

coolbud012 said:
Yupz right, even everyone would have their own opinion.

I think video tutorials are best to know ...

kira325 · Jan 5, 2014

Danzan said:
Check out Head First Java, 2nd Edition.
I'm finishing it, very well explained Java and Object oriented programming as well.

if I studied the book "Head First Android Development". is this enough without studying specifically java first?

coolbud012 · Jan 5, 2014

kira325 said:
if I studied the book "Head First Android Development". is this enough without studying specifically java first?

First go through all the above replies thoroughly ...

---------- Post added at 11:31 AM ---------- Previous post was at 11:28 AM ----------

nilaydani said:
I think video tutorials are best to know ...

Depends on a persons understanding level...

kira325 · Jan 5, 2014

it must learn first java

nikwen · Jan 5, 2014

nilaydani said:
I think video tutorials are best to know ...

coolbud012 said:
Depends on a persons understanding level...

And on how they learn best. For me reading is the best option.

coolbud012 · Jan 5, 2014

nikwen said:
And on how they learn best. For me reading is the best option.

So as I said above depends on person to person....For me it depends on how a person has explained, either its a book or any video...like Wrox books are very good...

Java fundamentals for Android development

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