`Comparable<String>` Interface

StringA is regarded as less than StringB if StringA would be proceed StringB in a dictionary. For example,

Expression	Evaluates to
"apple".compareTo("orange")	Negative Integer
"apple".compareTo("plum")	Negative Integer
"apple".compareTo("apple")	Zero
"orange".compareTo("orange")	Zero
"orange".compareTo("apple")	Positive Integer

Only the sign of the returned integer matters if the return value is not zero. The magnitude of a returned integer does not signify anything.

Memory Aide: think of this as subtraction.

apple - orange will be negative.
apple - apple will be zero.
orange - apple will be positive.

QUESTION 3:

Examine the following:

String myPet = "Fido" ;
String stray = "Rex" ;

if ( myPet.compareTo( stray ) < 0 )
  System.out.println( "Good Dog" );
else
  System.out.println( "Bad Dog" );

What is printed?

Answer:

Comparable<String> Interface

QUESTION 3:

`Comparable<String>` Interface