Java Reference
In-Depth Information
4. In secondary storage, typically a hard disk.
5. The central processing unit.
6. 21 100
7. NoȌa compiler is intended for programmers, to translate high-level
programming instructions into machine code.
8. Safety and portability.
9. No one person can learn the entire libraryȌit is too large.
10. Programs are stored in files, and files are stored in folders or directories.
11. You back up your files and folders.
12.
System.out.println(ÑHello,Ñ); System.out.println(Ñ
World!Ñ)
;
13. YesȌthe line starting with
//
is a comment, intended for human readers.
The compiler ignores comments.
14. The printout is
My lucky number is12
. It would be a good idea to
add a space after the
is
.
15. A compile-time error. The compiler will not know what to do with the word
Display
.
16. You need to run the program and observe its behavior.
17. A sequence of random characters, some funny-looking. Class files contain
virtual machine instructions that are encoded as binary numbers.
18. When a program has compiler errors, no class file is produced, and there is
nothing to run.
