How to make Large java program ? Please give me any suggestions

Answer 1

What do you mean by "Large java program" ?

Answer 2

Maybe using OOP philosophy. dividing the problem in small classes, one by entity.

Adjetives in requirements papper are usually attributes of this classes and actions/verbs are method that can accept messages from other objects to interact between them, aka... parameters.

Usually related classes are organized under same package. E.g. java.lang. or java.util. or something defined by your own

This is only a suggestion about how to organize code, the rest is begin to write. The limit are only on your imagination

In SoloLearn Playground it's a bit limited because compiler time count as part of cpu usage. after some time, process is killed.

Here some of my simple examples that I'm proud...

https://code.sololearn.com/cMTfGunOPj0I/?ref=app
https://code.sololearn.com/ckNGMJQlSWxy/?ref=app
https://code.sololearn.com/cV6aUJ2RSTGG/?ref=app