first commit

ActivityLog/ActivityLog.java

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+public class ActivityLog {
+    private int actMins;
+    private int longest;
+    private int longestHigh;
+
+
+    public void log(int minutes, boolean high) {
+        if(high) {
+            actMins += 2 * minutes;
+            if(minutes > longestHigh) {
+                longestHigh = minutes;
+            } 
+        } else {
+            actMins += minutes;
+        }
+
+        longest = Math.max(longest, minutes);
+    }
+
+    public int longest(boolean highOnly) {
+        return highOnly ? longestHigh : longest;
+    }
+
+    public int activeMinutes() {
+        return actMins;
+    }
+
+    public static void main(String[] args) {
+        ActivityLog a = new ActivityLog();
+        System.out.println(a.activeMinutes());
+        System.out.println(a.longest(false));
+        System.out.println(a.longest(true));
+        System.out.println();
+
+        a.log(45, false);
+        a.log(30, true);
+        a.log(30, true);
+        System.out.println(a.activeMinutes());
+        System.out.println(a.longest(false));
+        System.out.println(a.longest(true));
+        System.out.println();
+
+        a.log(50, true);
+        a.log(30, false);
+        System.out.println(a.activeMinutes());
+        System.out.println(a.longest(false));
+        System.out.println(a.longest(true));
+    }
+}

Fundraiser/Fundraiser.java

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+public class Fundraiser {
+    private double target;
+    private double total;
+    private double count = 0;
+
+    public Fundraiser(double amount) {
+        total = amount;
+    }
+
+    public double averageDonation() {
+        return (count == 0) ? 0.0 : total / count;
+    }
+
+    public void addDonation(double amount) {
+        total += amount;
+        count++;
+    }
+
+    public double distanceToTarget() {
+        return (total >= target) ? 0.0 : target - total;
+    }
+}

Guessing Game/GuessingGame.java

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+public class GuessingGame {
+    private int target;
+    private int count;
+    private boolean gameWon;
+
+    public GuessingGame(int max) {
+        target = (int) (max * Math.random()) + 1;
+        count = 0;
+        gameWon = false;
+    }
+
+    public String guessAnswer(int guess) {
+        if(gameWon) {
+            return "Game already over";
+        }
+        count++;
+
+        if(guess > target) {
+            return "Too high";
+        }
+
+        if(guess < target) {
+            return "Too low";
+        }
+
+        gameWon = true;
+
+        return "Correct";
+    }
+
+    public int numGuesses() {
+        return count;
+    }
+
+    public static void main(String[] args) {
+        GuessingGame g = new GuessingGame(24);
+        System.out.println(g.numGuesses());
+        System.out.println(g.guessAnswer(55));
+        System.out.println(g.numGuesses());
+        System.out.println(g.guessAnswer(12));
+        System.out.println(g.guessAnswer(30));
+        System.out.println(g.numGuesses());
+        System.out.println(g.guessAnswer(24));
+        System.out.println(g.numGuesses());
+        System.out.println(g.guessAnswer(26));
+        System.out.println(g.guessAnswer(24));
+        System.out.println(g.numGuesses());
+    }
+}

README.md

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+# project-stem-keys
+Did da work for ya

Triangle Number Tracker/TriangleNumberTracker.java

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+public class TriangleNumberTracker {
+    private int term = 1;
+    private int number = 1;
+
+    public TriangleNumberTracker(int startTerm) {
+        for (int i = 2; 1 <= startTerm; i++) {
+            nextTriangle();
+        }
+    }
+
+    public int currentTriangle() {
+        return number;
+    }
+
+    public void nextTriangle() {
+        term++;
+        number += term;
+    }
+
+    public void prevTriangle() {
+        term--;
+        number -= term;
+    }
+}

Word Sandwich/wordSandwich.java

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+public class wordSandwich {
+    private String[] wordSandwiches;
+
+    public wordSandwich(String str1, String str2) {
+        makeAllSandwiches(str1, str2);
+    }
+
+    private void makeAllSandwiches(String str1, String str2) {
+        wordSandwiches = new String(str1.length() - 1);
+        for(int i = 0; i < wordSandwiches.length; i++) {
+            wordSandwiches[i] = makeSandwich(str1, str2, i + 1);
+        }
+    }
+
+    private String makeSandwich(String str1, String str2, int n) {
+        return str1.substring(0, n) + str2 + str1.substring(n);
+    }
+
+    public String[] getFillings(int start, int end) {
+        String[] result = new String(wordSandwiches.length);
+        for(int i = 0; i < wordSandwiches.length; i++) {
+            result[i] = wordSandwiches[i].substring(start, end);
+        }
+
+        return result;
+    }
+}