See programming language and source code editor ... essentially a mnemonic version of the hardware's machine language. Generally, one line of assembly language is converted to one machine instruction.

For each CPU hardware platform, there is a low-level assembly language ... that generate many machine instructions for each source code statement the programmer writes (see compiler).

The main purpose of a Java compiler (or a compiler in any programming language) is to translate the high-level Java source code into a machine code file consisting of machine-readable 0s and 1s, and ...