overloading Flashcards
1
Q
overloading
A
allows methods to have the same name in the same class
2
Q
how java determines which method to call when multiple methods have the same name
A
it is based on the method signatures
3
Q
signature
A
name, static or instance, parameters (not return type) (what about visability modifier?)
4
Q
what is the signature for this:
public float doSomething(intx);
A
doSomething(int)
5
Q
prototype of a method
A
signature with a return type and any additional modifiers
6
Q
parameter type promotion
A
if you give java an integer when it expected a double (or anything more precise), it will promote the integer to a double
7
Q
public voidfooBar( intx, doubley ) { … }
public voidfooBar( doubleu, intv ) { … } …
A
fooBar( 10, 23.0 );// okay, use the first
fooBar( 10.0, 23 );// okay, use the second
fooBar( 10, 23 ); // java does not know which int to promote (compile-time error)
