This is some info needed. Part 1 and 2 are just examples of how I write my code. Part 3 which is like 6 problems is the code I need answered.

The problems with no code(Part 3) need to be answered!!!

package code; import java.io.IOException;[ public class Model [ // Determines the maximum length of a word private static final int MAXIMUM-WORD-LENGTH= 7; // Determines the maximum length of a word private static final int MINIMUM.WORD.LENGTH= 3; // Holds all words from the dictionary file that have lengths between the max and min, inclusive private ArrayList words; // Holds all words from the dictionary file that have the max length private ArrayList seedWords; // Holds all words fromwords that must be found by the player private HashMap wordsToFind; // The letters in the inventory of this game private ArrayList _observers; PART 3* DECLARE ANY ADDITIONAL INSTANCE VARIABLECS) HERE** *PART 3** METHODS YOU MUST DEFINE** package code; import java.io.IOException;[ public class Model [ // Determines the maximum length of a word private static final int MAXIMUM-WORD-LENGTH= 7; // Determines the maximum length of a word private static final int MINIMUM.WORD.LENGTH= 3; // Holds all words from the dictionary file that have lengths between the max and min, inclusive private ArrayList words; // Holds all words from the dictionary file that have the max length private ArrayList seedWords; // Holds all words fromwords that must be found by the player private HashMap wordsToFind; // The letters in the inventory of this game private ArrayList _observers; PART 3* DECLARE ANY ADDITIONAL INSTANCE VARIABLECS) HERE** *PART 3** METHODS YOU MUST DEFINE**