diff --git a/DecemberFourth.java b/DecemberFourth.java
new file mode 100644
index 0000000..0e1e23a
--- /dev/null
+++ b/DecemberFourth.java
@@ -0,0 +1,35 @@
+import java.util.Scanner;
+import java.util.Vector;
+
+public class DecemberFourth {
+    Vector<Character> v = new Vector<Character>();
+    Scanner in = new Scanner(System.in);
+    
+    public DecemberFourth() {
+        v.add('a');
+        v.add('e');
+        v.add('i');
+        v.add('o');
+        v.add('u');
+        v.add('y');
+    }
+
+    public void output() {
+        System.out.print("Enter a word: ");
+        String word = in.next();
+        int count = 0;
+
+        for (Character c : word.toCharArray()) {
+            if (v.contains(c)) {
+                count++;
+            }
+        }
+
+        System.out.println("There are " + count + " vowels in " + word);
+    }
+
+    public static void main(String[] args) {
+        DecemberFourth ds = new DecemberFourth();
+        ds.output();
+    }
+}
diff --git a/DecemberFourth2.java b/DecemberFourth2.java
new file mode 100644
index 0000000..fbdcb8f
--- /dev/null
+++ b/DecemberFourth2.java
@@ -0,0 +1,14 @@
+import java.util.Scanner;
+
+public class DecemberFourth2 {
+    public static void main(String[] args) {
+        Scanner in = new Scanner(System.in);
+        System.out.print("Enter a word: ");
+        String word = in.next();
+        for (int i = 0; i < word.length(); i++) {
+            for (int j = i; j < word.length(); j++) {
+                System.out.println(word.substring(i, j + 1));
+            }
+        }
+    }
+}
diff --git a/holiday.java b/holiday.java
new file mode 100644
index 0000000..89c1a3a
--- /dev/null
+++ b/holiday.java
@@ -0,0 +1,99 @@
+public class holiday {
+    static String dayStr;
+    static String intro = "On the twelfth day of Christmas, my true love gave to me ";
+    static String day1 = "a partridge in a pear tree.";
+    static String day2 = "two turtle doves, and ";
+    static String day3 = "three French hens, ";
+    static String day4 = "four calling birds, ";
+    static String day5 = "five golden rings, ";
+    static String day6 = "six geese a-laying, ";
+    static String day7 = "seven swans a-swimming, ";
+    static String day8 = "eight maids a-milking, ";
+    static String day9 = "nine ladies dancing, ";
+    static String day10 = "ten lords a-leaping, ";
+    static String day11 = "eleven pipers piping, ";
+    static String day12 = "twelve drummers drumming, ";
+
+    public static void main(String[] args) {
+        System.out.println();
+        System.out.println();
+        for (int i = 1; i <= 12; i++) {
+            whatDay(i);
+            System.out.println(day(i));
+            System.out.println();
+        }
+    }
+    public static String day(int day) {
+        switch (day) {
+            case 1:
+                return day1;
+            case 2:
+                return day2 + day1;
+            case 3:
+                return day3 + day2 + day1;
+            case 4:
+                return day4 + day3 + day2 + day1;
+            case 5:
+                return day5 + day4 + day3 + day2 + day1;
+            case 6:
+                return day6 + day5 + day4 + day3 + day2 + day1;
+            case 7:
+                return day7 + day6 + day5 + day4 + day3 + day2 + day1;
+            case 8:
+                return day8 + day7 + day6 + day5 + day4 + day3 + day2 + day1;
+            case 9:
+                return day9 + day8 + day7 + day6 + day5 + day4 + day3 + day2 + day1;
+            case 10:
+                return day10 + day9 + day8 + day7 + day6 + day5 + day4 + day3 + day2 + day1;
+            case 11:
+                return day11 + day10 + day9 + day8 + day7 + day6 + day5 + day4 + day3 + day2 + day1;
+            case 12:
+                return day12 + day11 + day10 + day9 + day8 + day7 + day6 + day5 + day4 + day3 + day2 + day1;
+            default:
+                break;
+        }
+        return "Error";
+    }
+
+    public static void whatDay(int day) {
+        switch (day) {
+            case 1:
+                dayStr = "first";
+                break;
+            case 2:
+                dayStr = "second";
+                break;
+            case 3:
+                dayStr = "third";
+                break;
+            case 4:
+                dayStr = "fourth";
+                break;
+            case 5:
+                dayStr = "fifth";
+                break;
+            case 6:
+                dayStr = "sixth";
+                break;
+            case 7:
+                dayStr = "seventh";
+                break;
+            case 8:
+                dayStr = "eighth";
+                break;
+            case 9:
+                dayStr = "ninth";
+                break;
+            case 10:
+                dayStr = "tenth";
+                break;
+            case 11:
+                dayStr = "eleventh";
+                break;
+            case 12:
+                dayStr = "twelfth";
+                break;
+        }
+        System.out.print("On the " + dayStr + " day of Christmas, my true love gave to me ");
+    }
+}
\ No newline at end of file
diff --git a/nov30.java b/nov30.java
new file mode 100644
index 0000000..8009764
--- /dev/null
+++ b/nov30.java
@@ -0,0 +1,10 @@
+public class nov30 {
+    public static void main(String[] args) {
+        for (int i = 1; i <= 10; i++) {
+            for (int j = 1; j <= 10; j++) {
+                System.out.print(i * j + "\t");
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/thing.java b/thing.java
new file mode 100644
index 0000000..3cf1fa1
--- /dev/null
+++ b/thing.java
@@ -0,0 +1,125 @@
+import java.util.Scanner;
+
+public class thing {
+    static long timeout = 500;
+    static int num = 243079824;
+    public static void main(String[] args) {
+        // a
+        System.out.println("\na");
+        int sum = 0;
+        for (int i = 2; i <= 100; i += 2) {
+            sum += i;
+        }
+        System.out.println(sum);
+
+        // b
+        System.out.println("\nb");
+        sum = 0;
+        for (int i = 1; i <= 100; i++) {
+            sum += i * i;
+        }
+        System.out.println(sum);
+
+        // c
+        int sum1 = 0;
+        System.out.println("\nc");
+        for (int i = 0; i <= 20; i++) {
+            sum1 += Math.pow(2, i);
+        }
+        System.out.println(sum1);
+
+    
+        // d
+        System.out.println("\nd");
+        Scanner in = new Scanner(System.in);
+        System.out.print("Enter a: ");
+        int a = in.nextInt();
+        System.out.print("Enter b: ");
+        int b = in.nextInt();
+        sum = 0;
+        for (int i = a; i <= b; i++) {
+            if (i % 2 == 1) {
+                sum += i;
+            }
+        }
+        System.out.println(sum);
+
+        // e
+        System.out.println("\ne");
+        int input = num;
+        int sum2 = 0;
+
+        for (int i = 0; i < ("" + input).length(); i++) {
+            int num2 = Integer.parseInt(("" + ("" + input).charAt(i)));
+            if (num2 % 2 == 1) {
+                sum2 += num2;
+            }
+        }
+        System.out.println(sum2);
+
+        // 6.3
+        // a
+        System.out.println("\n6.3");
+
+        int num1, num2, num3, num4, num5, num6, num7, num8;
+        num1 = 18;
+        num2 = 12;
+        num3 = 21;
+        num4 = 1;
+        num5 = 5;
+        num6 = 8;
+        num7 = 20;
+        num8 = 22;
+        int[] nums = { num1, num2, num3, num4, num5, num6, num7, num8 };
+        
+        System.out.println("\na");
+
+        int smallest = num1;
+        int largest = num1;
+        for (int i = 0; i < nums.length; i++) {
+            if (nums[i] < smallest) {
+                smallest = nums[i];
+            } else if (nums[i] > largest) {
+                largest = nums[i];
+            } else {
+                continue;
+            }
+        }
+
+        System.out.println("Smallest: " + smallest);
+        System.out.println("Largest: " + largest);
+
+        // b
+        System.out.println("\nb");
+        int even = 0;
+        int odd = 0;
+        for (int i = 0; i < nums.length; i++) {
+            if (nums[i] % 2 == 1) {
+                odd++;
+            } else {
+                even++;
+            }
+        }
+        System.out.println("Evens: " + even);
+        System.out.println("Odds: " + odd);
+
+        // c
+        System.out.println("\nc");
+        int total = 0;
+        for (int i = 0; i < nums.length; i++) {
+            int num = nums[i];
+            total += num;
+            System.out.println(total);
+        }
+
+        // d
+        System.out.println("\nd");
+        for (int i = 0; i < nums.length - 1; i++) {
+            int number1 = nums[i];
+            int number2 = nums[i + 1];
+            if (number1 == number2) {
+                System.out.println(number1);
+            }
+        }
+    }
+}