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Chris Needham
1,871 PointsI don't understand where I"m supposed to add the video, there's no .add method.
I don't understand where I"m supposed to add the video, there's no .add method.
package com.example.model;
import java.util.List;
public class Course {
private String mName;
private List<Video> mVideos;
public Course(String name, List<Video> videos) {
mName = name;
mVideos = videos;
}
public String getName() {
return mName;
}
public List<Video> getVideos() {
return mVideos;
}
}
package com.example.model;
public class Video {
private String mTitle;
public Video(String title) {
mTitle = title;
}
public String getTitle() {
return mTitle;
}
public void setTitle(String title) {
mTitle = title;
}
}
import com.example.model.Course;
import com.example.model.Video;
import java.util.Map;
public class QuickFix {
public void addForgottenVideo(Course course)
{
// TODO(1): Create a new video called "The Beginning Bits"
Video vid = new Video("The Beginning bits");
// TODO(2): Add the newly created video to the course videos as the second video.
}
public void fixVideoTitle(Course course, String oldTitle, String newTitle) {
}
public Map<String, Video> videosByTitle(Course course) {
return null;
}
}
1 Answer
Livia Galeazzi
Java Web Development Techdegree Graduate 21,083 PointsThe Course class has a list of videos that you can access using the getVideos() method. All lists of type List have an 'add' method by default, so you can just write:
public void addForgottenVideo(Course course) {
// TODO(1): Create a new video called "The Beginning Bits"
Video vid = new Video("The Beginning bits");
// TODO(2): Add the newly created video to the course videos as the second video.
course.getVideos().add(1, vid);
}
The 1 is the index at which you add the video. You want it to be the second video. The first position in the list is index zero, the second position is index 1.