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Java Java Data Structures Getting There Type Casting

Maati Grouni
Maati Grouni
2,481 Points

The method getTitleFromObject will be called and passed a String and/or a com.example.BlogPost. For this first task, ret

the code looks fine but I don't know why is not working does any one can help thanks

com/example/BlogPost.java
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;
    }
}
TypeCastChecker.java
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 = "";

    if(obj instanceof String) {
      result = (String) obj;
    } else if (obj instanceof BlogPost) {
      BlogPost temp = (BlogPost) obj;
      result = temp.getTitle();
    }
    return result;
  }

1 Answer

Yanuar Prakoso
Yanuar Prakoso
15,196 Points

Hi Maati Grouni

I think, if this is the whole code you wrote for the 2nd task of the Challenge, the main reason of the error is: it was missing one '}'

You can verify it yourself by counting the { and } pairs starting from the top public static String getTitleFromObject(Object obj) {

All you need to do is just add one more ' } ' below the return result; code line

I hope this can help a little. Keep up the good work and Happy coding.