Question

In this lab you will write a spell check program. The program has two input files: one is the dictionary (a list of valid words) and the other is the input file to be spell checked. The program will read in the words for the dictionary, then will read the input file and check whether each word is found in the dictionary. If not, the user will be prompted to leave the word as is, add the word to the dictionary or type in a replacement word and add the replacement word to the dictionary if it is not currently contained in the dictionary Dictionary The Dictionary will have a field to hold the words; the type of this field will be an ArrayList of Strings. Create the following interface and use it when implementing the Dictionary class. public interface DictionaryInterface t void addword (String word); //adds a new word to this dictionary boolean isWord (String word); //returns true if word is in the dictionary and false otherwise int getSize); String toString //number of words in the dictionary //return String of dictionary words The toString) method should return a String with each word on a separate line. Create a constructor with one parameter, a Scanner object which points to the file containing the words for the dictionary. The constructor will read the words, and store them in the Dictionary. Remember there is one word on each line of the dictionary file.

1. Dictionary.java
2. DictionaryInterface.java
3. Spell.java
4. SpellCheck.java

Answer 1

Thanks for posting the question, we are glad to help you. Here is the Dictionary.java class that implements the given interface. Questions doesn't state much about Spell.java and SpellCheck.java classes, please share the details and i'll be happy to assist you in that.

Here is the implemented Dictionary.java class

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import java.util.ArrayList;
import java.util.Scanner;

public class Dictionary implements DictionaryInterface {

    private ArrayList<String> words;

    public Dictionary(Scanner scanner) {
        words = new ArrayList<>(100);
        while(scanner.hasNextLine()){
            words.add(scanner.nextLine().trim().toLowerCase());
        }
    }

    @Override
    public void addWord(String word) {
        if (!words.contains(word.toLowerCase())) {
            words.add(word.toLowerCase());
        }
    }

    @Override
    public boolean isWord(String word) {
        return words.contains(word.toLowerCase());
    }

    @Override
    public int getSize() {
        return words.size();
    }

@Override
public String toString() {
    StringBuilder builder = new StringBuilder();
    for(String word:words){
        builder.append(word).append(" ");
    }
    return builder.toString();
}

}

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