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Java Java Data Structures Organizing Data Interfaces

Brian Pedigo
Brian Pedigo
26,783 Points
Posted by Brian Pedigo
Brian Pedigo
26,783 Points

Cant override compareTo ?

Here is the code that is causing the complier error of: method does not override from a supertype. @Override Public int compareTo(Object obj) { }

Steve Hunter
Steve Hunter
57,712 Points

I'm not sure what to suggest but have you tried changing Public to public?

Steve.

2 Answers

Craig Dennis
STAFF
Craig Dennis
Treehouse Teacher
Craig Dennis
Craig Dennis
Treehouse Teacher

Does the class implement Comparable?

Brian Pedigo
Brian Pedigo
26,783 Points
Brian Pedigo
Brian Pedigo
26,783 Points

Thank you sir that was the problem! I forgot to implement comparable in the class header. thanks for your help!

Alex Sidlinskiy
Alex Sidlinskiy
9,975 Points
Alex Sidlinskiy
Alex Sidlinskiy
9,975 Points

I get the same error on compareTo() method override. Here's what my code looks like.

@Override
  public int compareTo(Object obj){
    Treet other = (Treet) obj;
    if(equals(other)){
     return 0; 
    }
    int dateCmp = mCreationDate.compareTo(other.mCreationDate);
    if(dateCmp == 0){
      return mDescription.compareTo(other.mDescription);
    }
    return dateCmp;
  }
Jeffery Briggette
PLUS
Jeffery Briggette
Courses Plus Student 5,567 Points
Jeffery Briggette
Jeffery Briggette
Courses Plus Student 5,567 Points

Adding:

package com.teamtreehouse;

import java.util.Date;

public class Treet implements Comparable { // Awesome code here....

Should solve the problem.