Where can I find the source code of the programs so that I can learn from them

Hello
I am a java beginner. I used to wonder how people can make very efficient programs like chrome, facebook etc.,
I want to know where can I find the source code of simple programs so that I can learn from them. I want to increase the complexity of the programs gradually.
I want to develop programs like voice recorder, reminder etc., So can I get example source code for applications like these.
Hope my question is clear.

I doubt if facebook source code is available. However they do expose an API.
For chrome check out http://dev.chromium.org/developers/how-tos/get-the-code (a simple google would have given you that anyway)

Since you mentioned you are a beginner, I would suggest you start with the java source code. Look for a file called src.zip under your JDK installation directory. That contains the source code for the java classes.

Maneesh Godbole wrote:I doubt if facebook source code is available. However they do expose an API.
For chrome check out http://dev.chromium.org/developers/how-tos/get-the-code (a simple google would have given you that anyway)

Since you mentioned you are a beginner, I would suggest you start with the java source code. Look for a file called src.zip under your JDK installation directory. That contains the source code for the java classes.

I think there was a misunderstanding. I was not asking about the source code of chrome and facebook but I want to explore source code of simple application like alarm, calendar. I was asking for a place where I can find these.

Thank you for reply