There is a mistake in checking the task.

Question

Ok, so in last step of this task we're asked to compare creation dates and return oldest one, here is the thing. I wrote code that shouldn't have passed task cuz I wanted to check for syntax errors first. but it passed anyways. My guess is that while testin, first creation date is older than second passed creation date, so my code return 1, if we'd swapped them around, code would've returned -1 and task would be incomplete.
Or Im missing some logic that I did by luck.
code:
```java
public class BlogPost implements Comparable{
  private String mAuthor;
  private String mTitle;
  private String mBody;
  private String mCategory;
  private Date mCreationDate;
  public BlogPost(String author, String title, String body, String category, Date creationDate) {
    mAuthor = author;
    mTitle = title;
    mBody = body;
    mCategory = category;
    mCreationDate = creationDate;
  }
  public int compareTo(Object obj){
    BlogPost comparable = (BlogPost) obj;
    if(equals(comparable)){
      return 0;
    }
    int cmpCreationDate = mCreationDate.compareTo(comparable.getCreationDate());
    return cmpCreationDate;
  }
```

markmneimneh · Answer

I think your logic is right.
so let assume 
```java
myObject obj1 = new myObject()
myObject obj2 = new myObject()
obj3 = obj2
```
let assume  myObject has createdDate attribute and your override compare method returns

1 if this object > than that object
0 if this object == that object
-1 if this object < that object

then

obj1.equals(obj2) should return 1
obj2.equals(obj1) should return -1
obj2.equals(obj3) should return 0

I hope this answers your question.  If so, please mark the question as answered.
Thank you
```

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Alex Bratkovskij

Alex Bratkovskij

There is a mistake in checking the task.

1 Answer

markmneimneh

markmneimneh

Alex Bratkovskij

Alex Bratkovskij