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Start your free trialAbua KC
5,932 PointsvideosByTitle
I'd like to be able to get to the videos by their names. I keep getting run time exception, the other time i got map needs 23 key entries but got only 1. Please i need help
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;
import java.util.HashMap;
import java.util.List;
public class QuickFix {
public void addForgottenVideo(Course course) {
// TODO(1): Create a new video called "The Beginning Bits"
List<Video> video = course.getVideos();
Video newVideo = new Video ("The Beginning Bits");
video.add(1, newVideo);
// 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) {
/*String name = course.getName();
List<Video> video = course.getVideos();
HashMap<String, Video> byName = new HashMap <String, Video>();
for (Video videoTitle : video){
videoTitle.getTitle();
byName.put(name, videoTitle);
byName.get(name);
} */
Map<String, Video> byName = null;
List<Video> videos = course.getVideos();
Video video = new Video(null);
String name = course.getName();
if(course.getVideos() == null) {
if (video.getTitle().matches(name))
videos.add(video);
video.getTitle();
}
byName.put(name, video);
byName.get(name);
return byName;
}
}
1 Answer
Abua KC
5,932 PointsMap<String, Video> myHashMap = new HashMap <String, Video>(); List<Video> videos = course.getVideos(); Video video; for ( int i = 0; i < videos.size(); i++){ video = videos.get(i); myHashMap.put(video.getTitle(), video); }
return myHashMap;
}