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Start your free trialCory Walker
6,037 PointsI really don't understand the assignment instructions, kind of lost, don't know what to do, any help would be appreciate
I really don't understand the assignment instructions, kind of lost, don't know what to do, any help would be appreciate
package com.example;
import java.util.Date;
public class BlogPost {
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 String getAuthor() {
return mAuthor;
}
public String getTitle() {
return mTitle;
}
public String getBody() {
return mBody;
}
public String getCategory() {
return mCategory;
}
public Date getCreationDate() {
return mCreationDate;
}
}
import com.example.BlogPost;
public class TypeCastChecker {
/***************
I have provided 2 hints for this challenge.
Change `false` to `true` in one line below, then click the "Check work" button to see the hint.
NOTE: You must set all the hints to false to complete the exercise.
****************/
public static boolean HINT_1_ENABLED = false;
public static boolean HINT_2_ENABLED = false;
public static String getTitleFromObject(Object obj) {
// Fix this result variable to be the correct string.
String result = "";
return result;
}
}
1 Answer
Manish Giri
16,266 PointsThere are two cases in this challenge, and both involve the type of (Object obj)
-
- If the object passed in to the method is a
String
, you need to castobj
to aString
and assign it toresult
, because youreturn result
at the very end. - Otherwise, if the object
obj
is an instance ofBlogPost
instead, you first cast it to aBlogPost
object, then call thegetTitle()
method on this object to get it's string value, and assign it toresult
.
The instanceof
operator would be handy.
Good luck!