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Java Java Data Structures Organizing Data Interfaces

Guillaume Crt
Guillaume Crt
6,395 Points
Posted by Guillaume Crt
Guillaume Crt
6,395 Points

in compareTo method, why can't we pass a treet as parameter instead of an object ?

public int compareTo(Treet other) { ....

INSTEAD OF:

public int compareTo(Object obj) { Treet other = (Treet) obj; ....

1 Answer

Pedro Cabral
Pedro Cabral
33,586 Points

You can use:

compareTo(Treet other)

if you implement Comparable parameterised to the Treet class with: 

public class Treet implements Comparable<Treet> {
Juthawong Naisanguansee
.a{fill-rule:evenodd;}techdegree seal-36
Juthawong Naisanguansee
Full Stack JavaScript Techdegree Graduate 80,724 Points

Thank you for knowledge Pdero, I just knew that