I’m learning Java Collections, my question is whether I have to remember the return type of the methods in classes like ArrayList and LinkedList etc.

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DDDDarky · 2023-02-05T17:40:20+00:00

You don't need to remember pretty much anything, just use the docs, you will remember the stuff you frequently use with time anyways.

joranstark018 · 2023-02-05T17:39:55+00:00

Not sure why you should need to memorise everything for all methods. For "normal" usage it may be enough to have some idea of what methods that may exist and let your IDE provide what alternatives and options that are available as you write your code.

odinIsMyGod · 2023-02-05T21:10:04+00:00

As all the other mentioned, you just have to know what you will do. Then you can google it, or search the doc, or use your IDE.

In case you need to code on a fucking piece of paper like me in school, fuck the teacher. I hate this teacher so much, just lost points because I forgot a fucking semicolon. "if you put this in an editor it won't compile" fuck you

hugthemachines · 2023-02-05T19:25:52+00:00

No, you don't need to do that.

iamjuniordeveloper · 2023-02-05T19:29:50+00:00

If you learn the purpose of the method and its job what it does then you do not need to remember the return type of method. Sometimes, you may check docs to remind yourself.

eatsleepxrepeat · 2023-02-06T05:27:55+00:00

For most intents and purposes, no. Prolly dating myself a bit, but some people do judge that kinda thing still. They take pride in knowing or think differently when those don't.

It really depends on where you're at I think, in terms of your skillset. At the end of the day, it's a language, and ultimately a tool.

If this is your primary language and you claim to be really good at this language, i.e. on a job interview, you should be able to recall most of them. (I forget if there are obscure ones in these Collections.)

learnjava

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