Coffee and Diamonds on Valentine Day

[Mala Gupta]

I understand that the topic of this thread is funny, but that will add to what I'm sharing in this thread.

A quick comic converation (used in this book) can help you to remember a simple, yet important concept for this exam. For example the image that follows will help you to remember - A finally block (try-catch-finally) will execute even if the code in the try or any of the catch blocks defines a return statement.



You can compare the try block to the purchase of diamonds and the finally block to the coffee treat. The girl gets the coffee treat regardless of whether the boy successfully purchases the diamonds or not.

Can you cook up and share your own? :-)

With respect,
Mala

[Deepak Lal]

Hi Mala,
A nice comic representation !!! i appreciate your creativity.Can you check whether my below interpretation is right or wrong in terms of "Java Code",Can you please correct if im wrong.

try{    
    buyDiamond();  
    giveCoffeeTreat();
    return;                       
}catch(DiamondException de){  
    System.out.println(" Cannot buy diamonds for girl friend");            
    return;  
}finally{     
    giveCoffeeTreat();       
}
       

Can you please correct the code if im wrong.

Regards,
Deepak Lal

[Matthew Brown]

The finally block is run regardless of whether the main block executes successfully, or whether an exception is thrown. So if there are no exceptions then you'd be buying her two coffees. Which may or may not be a problem, depending on how sensitive she is to caffeine!

You don't need either of the return statements either.

[Deepak Lal]

Mathew,Thanks for the correction,can you check my code now

        try{
               // Here the guy promises to buy diamonds (Image 1). 
               buyDiamond();
               return;                     
       }catch(DiamondException de){
            Sytem.out.println(" Cannot buy diamonds for girl friend");          
            return;
       }finally{
              // Here the guy promises to give a coffee treat(Image 2).  
             giveCoffeeTreat(); // calling method for demo purposes.   //girl friend atleast deserves a coffee treat on Valentines day :)               
       }

But what if there is no exception for diamond,she would be getting that as well !!!Hence a girls best friend are diamonds :-))


Regards,
Deepak Lal

[Roel De Nijs]

Deepak,

Is it possible to change the code snippet to its orginal form? And just make a follow-up post with your changes. So it's easier for other ranchers to follow this thread better (and maybe also learn something). Because now when I look at it, I have no idea why Matthew said that you would buy her 2 coffees when there are no exceptions Thanks!

Like Matthew already indicated: both return statements are not needed.

Kind regards,
Roel

[edit] changed code snippet to original state

[Deepak Lal]

Thanks Roel for the immediate updated reply so the final code is as below.(removed unwanted return from try and catch blocks)

 

   try{   
               // Here the guy promises to buy diamonds (Image 1).    
               buyDiamond();                                     
       }catch(DiamondException de){   
            Sytem.out.println(" Cannot buy diamonds for girl friend");  
            return;           
       }finally{   
              // Here the guy promises to atleast give a coffee treat on Valentines day :)   (Image 2).                
             giveCoffeeTreat(); // calling method for demo purposes.
      }         

Hope I'm finally correct now.Thanks all for your support in this Thread.



Regards,
Deepak Lal

[Roel De Nijs]

It still has an unneeded return statement. So no full marks yet

[Deepak Lal]

I have edited my code.Please check @Roel.

try {
	// Here the guy promises to buy diamonds (Image 1).
	buyDiamond();
} catch (DiamondException de) {
	Sytem.out.println(" Cannot buy diamonds for girl friend");
} finally {
	// Here the guy promises to atleast give a coffee treat on Valentines day :) (Image 2).
	giveCoffeeTreat();
}

[Roel De Nijs]