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Neelesh Tewani
1,239 Pointschallenge 2 of 3 ?
// bad intializer and inputstreamreader error
package com.example.model;
import java.util.List;
import java.util.Set;
import java.util.HashSet;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
public class Course {
private String mTitle;
private Set<String> mTags;
public Course(String title) {
mTitle = title;
// TODO: initialize the set mTags
mTags = new HashSet<String>();
}
public void addTag(String tag)throws IOException {
// TODO: add the tag
BufferedReader mReader = new BufferedReader(InputStreamReader(System.in));
tag= mReader.readLine();
for(tag: mTags){
try{
tag.add(mTags);
}catch(IOException ioe){
System.out.println("there is some problem in your input");
}
}
}
public void addTags(List<String> tags) {
// TODO: add all the tags passed in
}
public boolean hasTag(String tag) {
// TODO: Return whether or not the tag has been added
return false;
}
public String getTitle() {
return mTitle;
}
}
3 Answers
Steve Hunter
57,712 PointsHi there,
For addTag you just use the add method on mTags - there's only one string to use, the parameter passed in. For the addTags method, which takes a list as a parameter, you need to set up a loop to iterate through each tag in the list, then use the first method, addTag, to add each one individually:
public void addTag(String tag) {
mTags.add(tag);
}
public void addTags(List<String> tags) {
for (String tag : tags){
addTag(tag);
// same as: mTags.add(tag);
}
}
Make sense?
Steve.
Andrew Dummer
6,885 PointsThe input is going into tag when you read the line, so that is what you want to add by substituting mTags.add(tag); where you currently have written tag.add(mTags);
Mariette Grans
4,279 PointsI tend to make it more difficult than it really is. Thank you
Steve Hunter
57,712 Points