CODEWITHSUNDEEP
javalist
David Rumpf
David Rumpf

Reputation: 57

List Method in combination with initializing a new object

in my course i am actually at Lists and how to work with them. There is one command i dont fully get. I think the topic lists is pretty roff so please go easy on me.

Person node = list.remove(0);

Person is the Class node the new Oject

What is inside of node now is what were inside of list.(index 0), why is that, didn't i remove what is inside of the list ? Can i handle it the same way like:

Person node = list.get(0); list.remove(0);

Upvotes: 1

Views: 51

Answers (1)

Harshal Parekh
Harshal Parekh

Reputation: 6017

Person node = list.get(0); 
list.remove(0);

is equivalent to:

Person node = list.remove(0);

It is how the method is defined in the List interface. When you remove, the method also returns the Object removed. More in docs here: https://docs.oracle.com/javase/8/docs/api/java/util/List.html#remove-int-

Upvotes: 1

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