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Java Java Data Structures - Retired Organizing Data Interfaces

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) { }

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

Does the class implement Comparable?

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

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

Adding:

package com.teamtreehouse;

import java.util.Date;

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

Should solve the problem.