Java decompiler and Java disassembler

I'm preparing the core Java. I have questions

Is javap a disassembler or a decompiler? What's the difference between them? What Java cli commands are used?

Solution

Javap is just an "informal" disassembly program. Its output provides you with information about bytecode, but it is not suitable for use by "assembler", but read by human beings

Traditional differences (from the C language world):

>Compiler: compile relatively high-level source code into assembly language > assembler: compile assembly code into machine code

Use your conclusions for decompilers and disassemblers

Sometimes, the software that performs these two steps (disassembly and decompilation) is also called decompiler, but it still depends on the context