initHEADmaster

12 files changed, 869 insertions, 0 deletions

diff --git a/java/MineSweeper.java b/java/MineSweeper.java
new file mode 100644
index 0000000..22b8966
--- /dev/null
+++ b/java/MineSweeper.java
@@ -0,0 +1,99 @@
+// Miya Natsuhara
+// CSE 122
+// 1-5-2024
+
+import java.util.*;
+
+// This program randomly-generates and displays a MineSweeper board according to the difficulty 
+// level specified by the user. 
+
+public class MineSweeper {
+    public static final int BOARD_SIZE = 15; // assume a board size board, square
+    public static final int MINE_INDICATOR = -1; 
+
+    public static void main(String[] args) {
+        int[][] board = new int[BOARD_SIZE][BOARD_SIZE];
+
+        int difficultyLevel = intro(); // introduce game and get level of difficulty (more mines -> harder)
+        int numMines = getNumMines(difficultyLevel);
+        generateMines(numMines, board); // generate coordinates for all the mines
+        updateCounts(board);  // updates the board with all the counts of mines
+        displayBoard(board);
+    }
+
+    // Prints a welcome message and prompts the user for difficulty level (between 1 and 10). 
+    // Restricts the user's response to this range and returns the result. 
+    public static int intro() {
+        Scanner console = new Scanner(System.in);
+        System.out.println("Welcome to MineSweeper!");
+        System.out.print("Please choose game difficulty (NOTE: Difficulty: 1 to 10): ");
+        int userNum = console.nextInt();
+        if (userNum > 10) {
+            userNum = 10;
+        } else if (userNum < 1) {
+            userNum = 1;
+        }
+        return userNum;
+    }
+
+    // Given a difficulty level, returns the number of mines that should be placed on the board. 
+    public static int getNumMines(int difficultyLevel) {
+        return difficultyLevel * (BOARD_SIZE / 5); // arbitrary
+    }
+
+    // Given the desired number of mines and game board, randomly places the specified number of
+    // mines throughout the board. 
+    public static void generateMines(int numMines, int[][] board) {
+        Random r = new Random();
+        for (int i = 0; i < numMines; i++) {
+            int xCoord = r.nextInt(BOARD_SIZE);
+            int yCoord = r.nextInt(BOARD_SIZE);
+            board[xCoord][yCoord] = MINE_INDICATOR;
+        }
+    }
+
+    // Given the board and a location (x, y) to check, returns the number of mines adjacent to 
+    // location (x, y). 
+    public static int placeCount(int[][] board, int x, int y) {
+        int count = 0;
+        for (int i = -1; i < 2; i++) {
+            for (int j = -1; j < 2; j++) {
+                int xCoord = x + i;
+                int yCoord = y + j;
+                boolean validSquare = xCoord >= 0 && xCoord < BOARD_SIZE && 
+                                      yCoord >= 0 && yCoord < BOARD_SIZE;
+                if (validSquare && board[xCoord][yCoord] == MINE_INDICATOR) {
+                    count++;
+                }
+            }
+        }
+        return count;
+    }
+
+    // Given the game board, places the appropriate numbers in non-mine cells throughout the
+    // board. 
+    public static void updateCounts(int[][] board) {
+        for (int i = 0; i < BOARD_SIZE; i++) {
+            for (int j = 0; j < BOARD_SIZE; j++) {
+                if (board[i][j] != MINE_INDICATOR) {
+                    board[i][j] = placeCount(board, i, j);
+                }
+            }
+        }
+    }
+
+    // Prints the board to the console, with each square's contents evenly-spaced. 
+    public static void displayBoard(int[][] board) {
+        for (int i = 0; i < BOARD_SIZE; i++) {
+            for (int j = 0; j < BOARD_SIZE; j++) {
+                if (board[i][j] == MINE_INDICATOR) {
+                    System.out.print("X ");
+                } else {
+                    System.out.print(board[i][j] + " ");
+                }
+            }
+            System.out.println();
+        }
+        System.out.println();
+    }
+}
diff --git a/java/Music.java b/java/Music.java
new file mode 100644
index 0000000..082c5b0
--- /dev/null
+++ b/java/Music.java
@@ -0,0 +1,132 @@
+// Nik Johnson
+// 1-7-2024
+// CSE 122
+
+import java.util.*;
+
+public class Music {
+    public static final String NOTES = "CDEFGAB";
+    public static final String SHARP = "♯";
+    public static final String FLAT = "♭";
+    
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        String[][] song = composeSong(scanner);
+        mostCommonNaturals(song);
+        System.out.println(Arrays.toString(mostCommonNaturals(song)));
+    }
+
+// "parent" method that calls helper methods getSongParams and composeMelodies
+// returns 2D array containing user-composed song
+
+    public static String[][] composeSong(Scanner scanner) {
+        
+        int[] songParams = getSongParams(scanner);
+        
+        return composeMelodies(scanner, songParams[0], songParams[1]);
+    }
+
+ // get user input on song parameters, return for use with composeMelodies
+    public static int[] getSongParams(Scanner scanner) {
+
+        System.out.print("Enter the number of melodies: ");
+        String inputNum = scanner.nextLine();
+        int numMelodies = Integer.parseInt(inputNum);
+
+        System.out.print("Enter the length of each melody: ");
+        String inputLength = scanner.nextLine();
+        int lengthMelodies = Integer.parseInt(inputLength);
+
+
+    
+        return new int[] {numMelodies, lengthMelodies};
+    }
+ // iterate through array of dimensions defined by list songParams, storing user-inputted notes as we go
+    public static String[][] composeMelodies(Scanner scanner, int numMelodies, int lengthMelodies) {
+        System.out.println("");
+
+        String[][] songArray = new String[numMelodies][lengthMelodies];
+
+        for (int n = 0; n < numMelodies; n++) {
+
+            System.out.println("Composing melody #" + (n+1));
+
+            for (int i = 0; i < lengthMelodies; i++) {
+                System.out.print("  Enter note #" + (i+1) + ": ");
+                String note = scanner.nextLine();
+                songArray[n][i] = note;
+
+            
+                if (numMelodies > 1) {
+                
+                } else if (lengthMelodies > 1) {
+                    System.out.println();
+                }
+            }
+             System.out.println();
+        }
+        return songArray;
+    }
+    
+ // parent method, use data from helper methods to assemble output array
+    public static String[] mostCommonNaturals(String[][] song) {
+        // new function
+
+        // string array thats # of melodies long -> since there will be that many notes
+
+        String[] notes = NOTES.split("");
+        
+        String[] result = new String[song.length];
+        for (int i = 0; i < result.length; i++) {
+            // get frequency list PER melody
+            int[] numNaturals = getNumNaturals(song[i]);
+            
+            // get largest frequency # in list
+
+            int largestFreq = getLargestFrequency(numNaturals);
+
+            // put note matching that largest frequency (in order of NOTES) into result array
+            // "CDEFGAB";
+            // [0, 1, 2, 1, 2, 0, 0]
+            // 2
+            // result = ["E"]
+
+            for (int n = 0; n < numNaturals.length; n++) {
+                if (numNaturals[n] == largestFreq) {
+                    result[i] = notes[n];
+                    break;
+                }
+            }
+        }
+
+
+        return result;
+    }
+
+ // look for frequency of note that appears most frequently in song
+    public static int getLargestFrequency(int[] numNaturals) {
+        int freq = 0;
+        for (int j = 0; j < numNaturals.length; j++) {
+            if (numNaturals[j] > freq) {
+                freq = numNaturals[j];
+            }
+        }
+        return freq;
+    }
+          
+    public static int[] getNumNaturals(String[] melody) {
+        int[] numNaturals = new int[NOTES.length()];
+
+        for (int n = 0; n < melody.length; n++) {
+            String note = melody[n];
+            if (note.length() == 1) {
+                int index = NOTES.indexOf(note);
+                numNaturals[index]++;
+            }
+
+        }
+        return numNaturals;
+    }
+
+
+}
diff --git a/java/MusicPlaylist.java b/java/MusicPlaylist.java
new file mode 100644
index 0000000..b127dd7
--- /dev/null
+++ b/java/MusicPlaylist.java
@@ -0,0 +1,135 @@
+// Nik Johnson
+// 1-31-2024
+// TA: Andy Ruan
+
+import java.util.*;
+
+// music playlist manager with functionality to add and play songs while keeping track of play history,
+// which can be cleared, or deleted from in batches
+public class MusicPlaylist {
+
+    public static void main(String[] args) {
+        Scanner console = new Scanner(System.in);
+        Queue<String> playlist = new LinkedList<>();
+        Stack<String> history = new Stack<>();
+        System.out.println("Welcome to the CSE 122 Music Playlist!");
+    
+        String destination = navigator(console);
+        while (!destination.equalsIgnoreCase("Q")) {
+            if (destination.equalsIgnoreCase("A")) {
+                addSong(console, playlist);
+            } else if (destination.equalsIgnoreCase("P")) {
+                playSong(playlist, history);
+            } else if (destination.equalsIgnoreCase("Pr")) {
+                printHistory(history);
+            } else if (destination.equalsIgnoreCase("C")) {
+                clearHistory(history);
+            } else if (destination.equalsIgnoreCase("D")) {
+                deleteFromHistory(console, history);
+            }
+            destination = navigator(console);
+        }
+    }
+
+    // menu function, called initially and after any other functions
+    // return String for use in main menu loop
+    public static String navigator(Scanner console) {
+        System.out.println("(A) Add song");
+        System.out.println("(P) Play song");
+        System.out.println("(Pr) Print history");
+        System.out.println("(C) Clear history");
+        System.out.println("(D) Delete from history");
+        System.out.println("(Q) Quit");
+        System.out.println();
+        System.out.print("Enter your choice: ");
+        String destination = console.nextLine();
+        return destination;
+    }
+
+    // add song to playlist according to user input
+    // no return
+    public static void addSong(Scanner console, Queue<String> playlist) {
+        System.out.print("Enter song name: ");
+        String songToAdd = console.nextLine();
+        playlist.add(songToAdd);
+        System.out.println("Successfully added " + songToAdd);
+        System.out.println();
+        System.out.println();
+    }
+    
+    //  play song at the front of the playlist
+    //  no return
+    public static void playSong(Queue<String> playlist, Stack<String> history) {
+        // if user attempts to play song when playlist is empty, throw exception
+        if (playlist.isEmpty()) throw new IllegalStateException();
+        String songToPlay = playlist.remove();
+        System.out.println("Playing song: " + songToPlay);
+        history.push(songToPlay);
+        System.out.println();
+        System.out.println();
+    }
+
+    // print history of played songs
+    // return unmodified history after printing it
+    public static void printHistory(Stack<String> history) {
+        int size = history.size();
+        // if there is no history and user attempts to print history, throw exception
+        if (history.isEmpty()) throw new IllegalStateException();
+        String[] historyArray = new String[size];
+        if (size != 0) {
+            for (int i = (size - 1); i >= 0; i--) {
+                historyArray[i] = history.pop();
+                System.out.println("    " + historyArray[i]);
+            }
+            for (int n = 0; n < size; n++) {
+                history.push(historyArray[n]);
+            }
+        }
+        System.out.println();
+        System.out.println();
+    }
+
+    // clear history when called
+    // return empty history
+    public static void clearHistory(Stack<String> history) {
+        history.clear();
+    }
+    
+    // delete from history according to user input, starting either from most recent or oldest history
+    // return modified history
+    public static void deleteFromHistory(Scanner console, Stack<String> history) {
+        int size = history.size();
+        List<String> historyArrayList = new ArrayList<>();
+        if (!history.isEmpty()) {
+            for (int i = 0; i < size; i++) {
+                historyArrayList.add(history.pop());
+            }
+        }
+        System.out.println("A positive number will delete from recent history.");
+        System.out.println("A negative number will delete from the beginning of history.");
+        System.out.print("Enter number of songs to delete: ");
+        int numToDelete = Integer.parseInt(console.nextLine());
+        int absNum = Math.abs(numToDelete);
+        if (absNum > size) {
+            throw new IllegalArgumentException();
+        }
+        System.out.println();
+        if (size != 0 && absNum != 0) {
+            if (absNum == size) {
+                historyArrayList.clear();
+            } else if (numToDelete < 0) {
+                int lastIndex = size - 1;
+                for (int n = lastIndex; n >= (size - absNum); n--) {
+                    historyArrayList.remove(n);
+                }
+            } else if (numToDelete > 0) {
+                for (int i = 0; i < numToDelete; i++) {
+                    historyArrayList.remove(0);
+                }
+            }
+        }
+        for (int n = (historyArrayList.size() - 1); n >= 0; n--) {
+            history.push(historyArrayList.get(n));
+        }
+    }
+}
diff --git a/java/Review.java b/java/Review.java
new file mode 100644
index 0000000..b8376db
--- /dev/null
+++ b/java/Review.java
@@ -0,0 +1,30 @@
+import java.util.*;
+
+public class Review {
+    // Create a Map of students in section to their favorite word/movie/song/etc
+    // Then, edit and print out the Map 
+
+    public static void main(String[] args) {
+        // Create the Map (do you want it to do ordered?)
+        Map<String, String> favorites = new TreeMap<>();
+        // Add key/value pairs to the Map
+        favorites.put("me", "キュ毛付きさぼたじ");
+        favorites.put("nik", "warp star");
+        favorites.put("andy", "none");
+        System.out.println(favorites);
+        // Delete one of the entries from the Map
+        favorites.remove("andy");
+        // Override one of the values
+        favorites.put("boner", "balls");
+        // Loop over the Map and print out all the values seperated by a comma and space
+        // Before printing - hypothesize what the output will look like!
+        for (String key : favorites.keySet()) {
+            System.out.print(favorites.get(key) + ", ");
+        }
+        // two ways to do this:
+        // 1st way - loop through keys then get values
+
+        // 2nd way - loop through values
+        
+    }
+}
\ No newline at end of file
diff --git a/java/Stonks.java b/java/Stonks.java
new file mode 100644
index 0000000..58fd703
--- /dev/null
+++ b/java/Stonks.java
@@ -0,0 +1,169 @@
+// Nik Johnson
+// 1-25-2024
+// TA: Andy Ruan
+// modified attempt for resubmission 1
+
+import java.util.*;
+import java.io.*;
+
+// stock simulator
+// stock market sandbox which reads fake market data from "stonks.tsv", and allows users to:
+// buy and sell stocks, and save their portfolio to a file.
+// upon quitting, the value of the users portfolio will be calculated and printed.
+
+public class Stonks {
+    public static final String STOCKS_FILE_NAME = "stonks.tsv";
+
+    public static void main(String[] args) throws FileNotFoundException {
+        Scanner console = new Scanner(System.in);
+        File stonks = new File(STOCKS_FILE_NAME);
+        Scanner stonklines = new Scanner(stonks);
+        int numStocks = Integer.parseInt(stonklines.nextLine());
+
+        String[] tickers = new String[numStocks];
+        Double[] prices = new Double[numStocks];
+        Double[] portfolio = new Double[numStocks];
+
+        // fill portfolio with zeros to prevent null exceptions
+        // without using Arrays.fill()
+        for (int n = 0; n < numStocks; n++) {
+            portfolio[n] = 0.0;
+        }
+
+        String info = stonklines.nextLine();                    
+        
+        // this runs once.
+        // functionally decomposing it would add lines of code, but no functionality. 
+        int index = 0;
+        while (stonklines.hasNextLine()) {
+            String nextline = stonklines.nextLine();
+            Scanner token = new Scanner(nextline);
+            tickers[index] = token.next();
+            prices[index] = token.nextDouble();
+            index++;
+        }
+
+        System.out.println("Welcome to the CSE 122 Stocks Simulator!");
+        System.out.println("There are " + numStocks + " stocks on the market:");
+
+        for (int i = 0; i < numStocks; i++) {
+            System.out.println(tickers[i] + ": " + prices[i]);
+
+        }
+
+        System.out.println();
+        String next = navigator(console);
+
+        while (!next.equals("quit")) {
+            if (next.equals("buy")) {
+                portfolio = buy(console, tickers, prices, portfolio);
+            } else if (next.equals("sell")) {
+                portfolio = sell(console, tickers, prices, portfolio);
+            } else if (next.equals("save")) {
+                save(console, tickers, portfolio);
+            } else {
+                System.out.println("Invalid choice: " + next);
+                System.out.println("Please try again");
+                System.out.println();
+            }
+            next = navigator(console);
+        }
+
+        Double value = quit(prices, portfolio);
+        System.out.println("Your portfolio is currently valued at: $" + value);
+    }
+
+    // menu method, called for inital prompt and then after using any other methods
+    // returns String which decides which function to use
+
+    public static String navigator(Scanner console) {
+        System.out.println("Menu: buy, sell, save, quit");
+        System.out.print("Enter your choice: ");
+        String destination = console.next();
+        return destination;
+    }
+
+    // add (buy) to portfolio according to user input, no lower than $5.0
+    // takes console scanner, and all data arrays defined in main lines 24-26
+    // return modified portfolio with MORE shares than before
+
+    public static Double[] buy(Scanner console, String[] tickers, 
+    Double[] prices, Double[] portfolio) {
+        System.out.print("Enter the stock ticker: ");
+        String order = console.next();
+        System.out.print("Enter your budget: ");
+        Double budget = console.nextDouble();
+
+        if (budget >= 5.0) {
+            for (int i = 0; i < tickers.length; i++) {
+                if (order.equals(tickers[i])) {
+                    portfolio[i] += (budget / prices[i]);
+                    System.out.println("You successfully bought " + tickers[i] + ".");
+                    System.out.println();
+            }
+        } 
+        } else {
+            System.out.println("Budget must be at least $5");
+            System.out.println();
+        }       
+        return portfolio;
+    }
+
+    // subtract (sell) from portfolio according to user input, if they have enough to sell
+    // takes console scanner, and all data arrays defined in main lines 24-26
+    // return modified portfolio with LESS shares than before
+
+    public static Double[] sell(Scanner console, String[] tickers, 
+    Double[] prices, Double[] portfolio) {
+        System.out.print("Enter the stock ticker: ");
+        String ticker = console.next();
+        System.out.print("Enter the number of shares to sell: ");
+        Double sellAmount = console.nextDouble();
+        for (int i = 0; i < tickers.length; i++) {
+            if (ticker.equals(tickers[i])) {
+                if (sellAmount > portfolio[i]) {
+                    System.out.println("You do not have enough shares of " + ticker + " to sell " + sellAmount + " shares.");
+                    System.out.println();
+                } else if (sellAmount <= portfolio[i]) {
+                    portfolio[i] = portfolio[i] - sellAmount;
+                    System.out.println("You successfully sold " + sellAmount + " shares of " + ticker + ".");
+                    System.out.println();
+                }
+            }
+        }
+        return portfolio;
+    }
+
+    // write current portfolio to file named according to user input
+    // takes console scanner, array of tickers and the users current portfolio
+
+    public static void save(Scanner console, String[] tickers, Double[] portfolio) throws FileNotFoundException {
+        System.out.print("Enter new portfolio file name: ");
+        String fileName = console.next();
+        System.out.println();
+        File saveData = new File(fileName);
+        PrintStream savePortfolio = new PrintStream(saveData);
+        for (int i = 0; i < tickers.length; i++) {
+            if (portfolio[i] != 0.0) {
+                savePortfolio.println(tickers[i] + " " + portfolio[i]);
+            }
+        }
+    }
+
+    // upon quitting, calculate total portfolio value using-
+    // -values in portfolio and current market prices
+    // return total value for printing
+
+    public static double quit(Double[] prices, Double[] portfolio) {
+        System.out.println();
+        Double portfolioValue = 0.0;
+        for (int i = 0; i < prices.length; i++) {
+            if (portfolio[i] != null) {
+                Double currValue = prices[i]*portfolio[i];
+                portfolioValue += currValue;
+            } else portfolioValue += 0;
+        }
+        return portfolioValue;
+    }
+
+}
\ No newline at end of file
diff --git a/java/WordStats.java b/java/WordStats.java
new file mode 100644
index 0000000..22c3c76
--- /dev/null
+++ b/java/WordStats.java
@@ -0,0 +1,75 @@
+import java.util.*;
+
+public class WordStats {
+    public static void main(String[] args) {
+        Scanner console = new Scanner(System.in);
+
+        String[] words = getListOfWords(console);
+        System.out.println("Words: " + Arrays.toString(words));
+
+        String longestWord = getLongestWord(words);
+        System.out.println("Longest word: " + longestWord);
+        
+        vowelSearch(words);
+    }
+    
+
+    /*
+     * ask user for number of words to test, and store that (integer) as "number_of_Words"
+     * loop for that number of iterations, adding each word to array "words"
+     */
+    public static String[] getListOfWords(Scanner console) {
+        System.out.print("How many words? ");
+        int numbers_of_WORDS = console.nextInt();
+
+        String[] words = new String[numbers_of_WORDS];
+
+        for (int i = 0; i < numbers_of_WORDS; i++) {
+            System.out.print("Next word? ");
+            String Word = console.next();
+            words[i] = Word;
+        }
+
+        return words;
+    }
+    
+    /*
+     * iterate through array "words"
+     * return longest word
+     */
+
+    public static String getLongestWord(String[] words) {
+        String longestWord = "";
+        for (int i = 0; i < words.length; i++) {
+            String curr = words[i];
+            if (curr.length() > longestWord.length()) {
+                longestWord = curr;
+            }
+        }
+        return longestWord;
+
+    }
+
+    /*
+     * test first character of each word in array "words"
+     * if first char is any defined in upper or lower case vowels, print it
+     */
+         
+    public static void vowelSearch(String[] words) {
+        char[] uppercaseVowels = { 'A', 'E', 'I', 'O', 'U' };
+        char[] lowercaseVowels = { 'a', 'e', 'i', 'o', 'u' };
+        System.out.println("Words beginning with vowels: ");
+        for (int i = 0; i < words.length; i++) {
+            String curr = words[i];
+            char firstChar = curr.charAt(0);
+            for (int j = 0; j < uppercaseVowels.length; j++) {
+                if (firstChar == uppercaseVowels[j] || firstChar == lowercaseVowels[j]) {
+                    System.out.println("    " + curr);
+                }
+            }
+        }
+
+    }
+
+
+}
diff --git a/java/absurdle/Absurdle.java b/java/absurdle/Absurdle.java
new file mode 100644
index 0000000..8353cbb
--- /dev/null
+++ b/java/absurdle/Absurdle.java
@@ -0,0 +1,188 @@
+// Nik Johnson
+// 2-11-2024
+// TA: Andy Ruan
+
+// TODO: Write your class comment here! 
+
+import java.util.*;
+import java.io.*;
+
+public class Absurdle  {
+    public static final String GREEN = "🟩";
+    public static final String YELLOW = "🟨";
+    public static final String GRAY = "⬜";
+
+    // [[ ALL OF MAIN PROVIDED ]]
+    public static void main(String[] args) throws FileNotFoundException {
+        Scanner console = new Scanner(System.in);
+        System.out.println("Welcome to the game of Absurdle.");
+
+        System.out.print("What dictionary would you like to use? ");
+        String dictName = console.next();
+
+        System.out.print("What length word would you like to guess? ");
+        int wordLength = console.nextInt();
+
+        List<String> contents = loadFile(new Scanner(new File(dictName)));
+        Set<String> words = pruneDictionary(contents, wordLength);
+
+        List<String> guessedPatterns = new ArrayList<>();
+        while (!isFinished(guessedPatterns)) {
+            System.out.print("> ");
+            String guess = console.next();
+            String pattern = record(guess, words, wordLength);
+            System.out.println(words);
+            guessedPatterns.add(pattern);
+            System.out.println(": " + pattern);
+            System.out.println();
+        }
+        System.out.println("Absurdle " + guessedPatterns.size() + "/∞");
+        System.out.println();
+        printPatterns(guessedPatterns);
+    }
+
+    // [[ PROVIDED ]]
+    // Prints out the given list of patterns.
+    // - List<String> patterns: list of patterns from the game
+    public static void printPatterns(List<String> patterns) {
+        for (String pattern : patterns) {
+            System.out.println(pattern);
+        }
+    }
+
+    // [[ PROVIDED ]]
+    // Returns true if the game is finished, meaning the user guessed the word. Returns
+    // false otherwise.
+    // - List<String> patterns: list of patterns from the game
+    public static boolean isFinished(List<String> patterns) {
+        if (patterns.isEmpty()) {
+            return false;
+        }
+        String lastPattern = patterns.get(patterns.size() - 1);
+        return !lastPattern.contains("⬜") && !lastPattern.contains("🟨");
+    }
+
+    // [[ PROVIDED ]]
+    // Loads the contents of a given file Scanner into a List<String> and returns it.
+    // - Scanner dictScan: contains file contents
+    public static List<String> loadFile(Scanner dictScan) {
+        List<String> contents = new ArrayList<>();
+        while (dictScan.hasNext()) {
+            contents.add(dictScan.next());
+        }
+        return contents;
+    }
+
+    public static Set<String> pruneDictionary(List<String> contents, int wordLength) {
+        if (wordLength < 1) throw new IllegalArgumentException();
+        Set<String> prunedDict = new HashSet<>();
+        for (String word : contents) {
+            if (word.length() == wordLength) {
+                prunedDict.add(word);
+            }
+        }
+        return prunedDict;
+    }
+
+    public static String record(String guess, Set<String> words, int wordLength) {
+        if (guess.length() != wordLength || words.isEmpty()) {
+            throw new IllegalArgumentException();
+        }
+        Map<String, Set<String>> wordMap = new TreeMap<>();
+        Iterator<String> iter = words.iterator();
+        while (iter.hasNext()) {
+            String word = iter.next();
+            String nextPattern = patternFor(word, guess);
+            if (!wordMap.containsKey(nextPattern)) {
+                wordMap.put(nextPattern, new HashSet<String>());
+                // iter.remove();
+            }
+            wordMap.get(nextPattern).add(word);
+        }
+
+        Boolean allSameSize = true;
+        int setSize1 = 0;
+
+        for (String pattern : wordMap.keySet()) {
+            int size = wordMap.get(pattern).size();
+            if (setSize1 == 0) setSize1 = size;
+            if (setSize1 != size) allSameSize = false;
+        }
+
+        if (allSameSize) {
+            for (String pattern : wordMap.keySet()) {
+                removeAllNonMatching(words, wordMap.get(pattern));
+                return pattern;
+            }
+        }
+
+        String pattern = "";
+        int setSize = 0;
+        for (String word : wordMap.keySet()) {
+            int nextSetSize = (wordMap.get(word)).size();
+            if (nextSetSize > setSize) {
+                setSize = nextSetSize;
+                pattern = word;
+            }
+        }
+        removeAllNonMatching(words, wordMap.get(pattern));
+        return pattern;
+    }
+
+    public static void removeAllNonMatching(Set<String> words, Set<String> match) {
+        Iterator<String> iter = words.iterator();
+        while(iter.hasNext()) {
+            if(!match.contains(iter.next())) {
+                iter.remove();
+            }
+        }
+    }
+
+    public static String patternFor(String word, String guess) {
+        List<String> splitGuess = new ArrayList<>();
+        String pattern = new String();
+        for (int i = 0;i < guess.length(); i++) {
+            String nextChar = Character.toString(guess.charAt(i));
+            splitGuess.add(nextChar);
+        }
+
+        Map<Character, Integer> wordMap = new HashMap<>();
+        for (int j = 0; j < word.length(); j++) {
+            char wordChar = word.charAt(j);
+            if (!wordMap.containsKey(wordChar)) {
+                wordMap.put(wordChar, 1);
+            } else {
+                wordMap.put(wordChar, (wordMap.get(wordChar) + 1));
+            }
+        }
+
+        for (int n = 0; n < splitGuess.size(); n++) {
+            if ((Character.toString(word.charAt(n))).equals(splitGuess.get(n))) {
+                int currCount = wordMap.get((splitGuess.get(n)).charAt(0));
+                wordMap.put(word.charAt(n), (currCount - 1));
+                splitGuess.set(n, GREEN);
+            }
+        }
+
+        for (int n = 0; n < splitGuess.size(); n++) {
+            char charToCheck = (splitGuess.get(n)).charAt(0);
+            if ((wordMap.keySet()).contains(charToCheck)
+            && wordMap.get(charToCheck) != 0) {
+                int currCount2 = wordMap.get(charToCheck);
+                wordMap.put(charToCheck, (currCount2 - 1));
+                splitGuess.set(n, YELLOW);
+            }
+        }
+
+        for (int n = 0; n < splitGuess.size(); n++) {
+            if ((splitGuess.get(n)).length() == 1) {
+                splitGuess.set(n, GRAY);
+            }
+        }
+
+        for (int i = 0; i < splitGuess.size(); i++) {
+            pattern += splitGuess.get(i);
+        }
+        return pattern;
+    }
+}
diff --git a/java/absurdle/small_dict.txt b/java/absurdle/small_dict.txt
new file mode 100644
index 0000000..32e2fed
--- /dev/null
+++ b/java/absurdle/small_dict.txt
@@ -0,0 +1,9 @@
+rgrasfally
+beta
+cool
+deal
+else
+flew
+good
+hope
+ibex
diff --git a/java/helloworld.java b/java/helloworld.java
new file mode 100644
index 0000000..f9f58c0
--- /dev/null
+++ b/java/helloworld.java
@@ -0,0 +1,8 @@
+// package src;
+// import src.printer;
+
+public class helloworld {
+    public static void main(String[] args) {
+        System.out.println("hellow");
+    }
+}
\ No newline at end of file
diff --git a/java/printer.java b/java/printer.java
new file mode 100644
index 0000000..9392884
--- /dev/null
+++ b/java/printer.java
@@ -0,0 +1,7 @@
+public class printer {
+    public static void main(String[] args) {
+        System.out.println("hellow");
+        System.out.println("hello");
+        System.out.println("helw");
+    }
+}
\ No newline at end of file
diff --git a/java/stonks.tsv b/java/stonks.tsv
new file mode 100644
index 0000000..16256ca
--- /dev/null
+++ b/java/stonks.tsv
@@ -0,0 +1,7 @@
+5
+Symbol Price P/E Ratio Dividend Yield
+AAPL 150.2 30.0 1.5%
+COST 673.58 45.8 1.5% 
+GOOGL 2750.50 35.0 0.8%
+MSFT 310.75 28.5 1.2%
+AMZN 3400.25 40.0 0.5%
diff --git a/java/variables.java b/java/variables.java
new file mode 100644
index 0000000..5c1803c
--- /dev/null
+++ b/java/variables.java
@@ -0,0 +1,10 @@
+public class variables {
+    public static void main(String[] args) {
+        int x = 8;
+        int xy = 16;
+        int y = 32;
+        System.out.println((x+3)*200);
+        System.out.println(xy);
+        System.out.println(y);
+    }
+}
\ No newline at end of file