Teach Yourself Java in 21 Days

Day

16

Packages and Interfaces

323

Packages ................................................................................................. 324

Programming in the Large ................................................................. 324

Programming in the Small ................................................................. 327

Hiding Classes ................................................................................... 329

Interfaces ................................................................................................ 331

Programming in the Large ................................................................. 331

Programming in the Small ................................................................. 335

Summary ................................................................................................ 338

Q&A ...................................................................................................... 339