フリー問題

問題文

A compiled class file is copied to a machine that runs a different operating system, and the program starts there without any change to the source. What does the compiled file contain that makes this possible?

選択肢

1. The compiled file automatically holds the readable instructions that every machine can read.
2. The compiled file automatically holds the native bytecode that every machine can read.
3. The compiled file automatically holds the encrypted encoding that every machine can read.
4. The compiled file automatically holds the intermediate format that every machine can read.