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Start your free trialMohammad Rahman
1,168 PointsChanging to BlogPost type but not working
public int compareTo(Object<BlogPost> obj) {
BlogPost other = obj;
if (equals(other)) {
return 0;
}
return mCreationDate.compareTo(other.mCreationDate);
}
package com.example;
import java.io.Serializable;
import java.util.Date;
public class BlogPost implements Comparable, Serializable {
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(BlogPost obj) {
BlogPost other = obj;
if (equals(other)) {
return 0;
}
return mCreationDate.compareTo(other.mCreationDate);
}
public String[] getWords() {
return mBody.split("[^\\w']+");
}
public String getAuthor() {
return mAuthor;
}
public String getTitle() {
return mTitle;
}
public String getBody() {
return mBody;
}
public String getCategory() {
return mCategory;
}
public Date getCreationDate() {
return mCreationDate;
}
}
1 Answer
metzu
5,907 Pointspublic class BlogPost implements Comparable<BlogPost>, Serializable {} // you forgot about the actual type
public int compareTo(BlogPost obj) {
BlogPost other =<BlogPost> obj; // delete this, since were already using generics. no need to cast
if (equals(other)) { // your passing a non existent reference variable since it's already been deleted, so use obj in the method signature or change obj to other in the method signature
return 0;
}
return mCreationDate.compareTo(other.mCreationDate);
}
```java
Hope it helps
Mohammad Rahman
1,168 Pointsthanks:)
Kevin Faust
15,353 PointsKevin Faust
15,353 PointsEdited code for markup