Data Structures Using Java

B

File Utilities

It is generally agreed upon that one should not write “utility” code every time one

writes a new program. The first time one writes code for some purpose in a given

program, it is new code and must be written. The second time one writes much

the same code in a different place, the idea of creating a method for that purpose

should be considered, and certainly by the third time the same code is written, it’s

time to write one method with parameters and to get that method right. Obviously

it’s a method that is common to the computation as a whole, so the code should

be standardized.

Almost nowhere is this principle more evident than in the ...