Help with Code Challenge Step 1?

Question

For this part the instructions say to initialize the set in the constructor. This is easy enough, but I got the following compile error:

JavaTester.java:67: error: constructor Course in class Course cannot be applied to given types; Course course = new Course("Java Data Structures"); ^ required: String,Set found: String reason: actual and formal argument lists differ in length Note: JavaTester.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 1 error

This object was already made before I started the exercise, and I don't know where it is so I can't change it appropriately. Any help would be great.

Thanks!

Answer 1 · 2016-06-11T17:38:15Z

June 11, 2016 5:38pm

task 1 is just the creation of the set, which may require an extra import statment.

package com.example.model;

import java.util.List;
import java.util.Set;
import java.util.HashSet;

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>(); //new HashSet<>();
  }

  public void addTag(String tag) {
    // TODO: add the tag
  }

  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;
  }

}

Welcome to the Treehouse Community

Looking to learn something new?

Sahil Katrekar

Sahil Katrekar

Help with Code Challenge Step 1?

1 Answer

Simon Coates

Simon Coates

Sahil Katrekar

Sahil Katrekar