How to practice more java program without using laptop

Question

please answer

Answer 1

I think sololearn's mobile app is the best way for programming on the go. I personally prefer it.

Answer 2

Use Intergrated Development Environments (IDEs).

For example,
eclipse
bluejay
greenfoot
Much more...

If you can't use them or any others, use an online IDE or Emulator.
Just do an Internet Search for " Java Online "
or anything related.
:)