Debugging!!! Logcat!!! IMPORTANT

[Rajeev]

Attention Everybody!!

This is the moment you were waiting for!!!

Ever wondered why I take a lot of time to debug in the class but 

very quickly debug at the room...

Thats because I use Logcat..

WHY DID I HIDE IT TILL NOW:

And why didn't I use it in class...because I wanted all of you to 

Try to program without errors..

Solve your errors by being a compiler...

Solve your errors by careful observation...

And I think, by now you know what and why you are coding..

Had I told about this on the first day, you would have just used logcat everywhere 

without even know what you are learning....

That would just make everybody hit-and-trialers....

After all these line, I hope you understand why I didnt reveal logcats usage in the beginning.

Now, HOW TO DEBUG???

1) System.out.println(String)

Prints out the string onto the logcat with the 

Tag - System.out and color - green

2) Log.d(TAG, Debug String)

Prints out the string onto the logcat with the 

Tag - TAG and color - blue

3) Log.e(TAG, Error String)

Prints out the string onto the logcat with the 

Tag - TAG and color - red

4) Log.w(TAG, Warning String)

Prints out the string onto the logcat with the 

Tag - TAG and color - orange

Others are not required but if you are interested find them at LOG Functions

NOTE:

For debugging, you should not use "Run As" but rather use "Debug As".

[Rajeev]

Sample Code:

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

//Testing System.out

System.out.println("System.out is working");

//Testing Log

Log.d("DEBUG", "Log.d is working");

Log.e("ERROR", "Log.e is working");

Log.w("WARNING", "Log.w is working");

}