Practice cloning

Java Multithreading

Level 1, Lesson 8

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"Hi, Amigo!"

"I just found a magazine from 2014. Can you imagine?"

"And it has a set of cloning tasks that are older than dirt. Check it out:"

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Ibrahim

Level 41 , Sheffield, United Kingdom

17 January 2022, 10:23

Shallow copy vs Deep copy and their differences when cloning https://www.geeksforgeeks.org/clone-method-in-java-2/

Jurij Thmsn

Level 29 , Flensburg, Germany

16 June 2021, 14:16

How is nr3 "easy" ? Its the hardest on this page. Anyways. Joshua Bloch says, cloning like this is a bad idea. You should rather use Copy constructors and factories. So its probably not worth spending tooooo much effort on this topic.

Andrei

Level 41

24 March 2021, 09:16

For the "Prevent cloning" task ask yourself - when you're trying to clone C, if you can't use super.clone() from B class (as this will return an error), what source of information can you use for the new clone? And in B class, if you're not supposed to clone this class, what should you return?

Andrei

Level 41

24 March 2021, 09:20

I solved it in about 80 minutes, 41 attempts and many google searches without results because it is a very specific situation so I ended up using the mentor solution. But it was a good exercise, because all of the googling and trying to understand the task made me learn new things and better understand the cloning thingy/situation.