include assignment1

src/dev/sowinski/comp1510/assignment1/q1/Change.java

@@ -0,0 +1,77 @@
+package dev.sowinski.comp1510.assignment1.q1;
+
+import java.util.Scanner;
+
+/**
+ * Change calculates bills and coins 
+ * required to represent a given dollar
+ * amount.
+ * 
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
+public class Change {
+
+    /** TEN represents ten dollar bill. */
+    static final double TEN = 10.00;
+    
+    /** FIVE represents five dollar bill. */
+    static final double FIVE = 5.00;
+    
+    /** TOONIE represents 2 dollar coin. */
+    static final double TOONIE = 2.00;
+    
+    /** LOONIE represents 1 dollar coin. */
+    static final double LOONIE = 1.00;
+    
+    /** QUARTER represents the quarter coin. */
+    static final double QUARTER = 0.25;
+    
+    /** DIME represents the dime coin. */
+    static final double DIME = 0.10;
+    
+    /** NICKEL represents the nickel coin. */
+    static final double NICKEL = 0.05;
+    
+    /** PENNY represents the penny coin. */
+    static final double PENNY = 0.01;
+    
+    /**
+     * main program entry.
+     * @param args unused
+     */
+    public static void main(String[] args) {
+        final double magicNumber = 0.001;
+        Scanner scan = new Scanner(System.in);
+        
+        System.out.print("Enter dollar amount: ");
+        double dollars = scan.nextDouble();
+        scan.close();
+
+        System.out.println("You will need the following to make $" + dollars);
+        
+        System.out.println((int) (dollars / TEN) + " $10   dollar bill(s).");
+        dollars %= TEN;
+        
+        System.out.println((int) (dollars / FIVE) + " $5    dollar bill(s).");
+        dollars %= FIVE;
+        
+        System.out.println((int) (dollars / TOONIE) + " $2    toonie(s).");
+        dollars %= TOONIE;
+        
+        System.out.println((int) (dollars / LOONIE) + " $1    loonie(s).");
+        dollars %= LOONIE;
+        
+        System.out.println((int) (dollars / QUARTER) + " $0.25 quarter(s).");
+        dollars %= QUARTER;
+        dollars += magicNumber;
+        
+        System.out.println((int) (dollars / DIME) + " $0.1  dime(s).");
+        dollars %= DIME;
+        
+        System.out.println((int) (dollars / NICKEL) + " $0.05 nickel(s).");
+        dollars %= NICKEL;
+        
+        System.out.println((int) (dollars / PENNY) + " $0.01 pennie(s).");   
+    }    
+}

src/dev/sowinski/comp1510/assignment1/q2/Sqrt.java

@@ -0,0 +1,54 @@
+package dev.sowinski.comp1510.assignment1.q2;
+
+import java.util.Scanner;
+
+/**
+ * Sqrt estimates the square root of a
+ * given number.
+ * 
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
+public class Sqrt {
+    /**
+     * main program entry.
+     * @param args unused
+     */
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        System.out.print("Please enter a number: ");
+        double a = scan.nextDouble();
+        scan.close();
+        
+        double s = (a + 1) / 2;
+        System.out.println("Estimate 1:  " + s);        
+
+        s = (s + a / s) / 2;
+        System.out.println("Esitmate 2:  " + s);
+
+        s = (s + a / s) / 2;
+        System.out.println("Esitmate 3:  " + s);
+
+        s = (s + a / s) / 2;
+        System.out.println("Esitmate 4:  " + s);
+
+        s = (s + a / s) / 2;
+        System.out.println("Esitmate 5:  " + s);
+
+        s = (s + a / s) / 2;
+        System.out.println("Esitmate 6:  " + s);
+
+        s = (s + a / s) / 2;
+        System.out.println("Esitmate 7:  " + s);
+
+        s = (s + a / s) / 2;
+        System.out.println("Esitmate 8:  " + s);
+
+        s = (s + a / s) / 2;
+        System.out.println("Esitmate 9:  " + s);
+
+        s = (s + a / s) / 2;
+        System.out.println("Esitmate 10: " + s);
+
+    }
+}

src/dev/sowinski/comp1510/assignment1/q3/Reverse.java

@@ -0,0 +1,49 @@
+package dev.sowinski.comp1510.assignment1.q3;
+
+import java.util.Scanner;
+import java.util.Stack;
+
+/**
+ * Reverse reads strings back in reverse.
+ * 
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
+public class Reverse {
+
+    /**
+     * main program entry.
+     * @param args unused
+     */
+    public static void main(String[] args) {
+        Stack<String> wordStack = new Stack<String>();
+        
+        Scanner scan = new Scanner(System.in);
+        System.out.println("Enter ten words!");
+
+        wordStack.push(scan.next());
+        wordStack.push(scan.next());
+        wordStack.push(scan.next());
+        wordStack.push(scan.next());
+        wordStack.push(scan.next());
+        wordStack.push(scan.next());
+        wordStack.push(scan.next());
+        wordStack.push(scan.next());
+        wordStack.push(scan.next());
+        wordStack.push(scan.next());
+        
+        scan.close();
+        
+        System.out.println(wordStack.pop() + " "
+                + wordStack.pop() + " "
+                + wordStack.pop() + " "
+                + wordStack.pop() + " "
+                + wordStack.pop() + " "
+                + wordStack.pop() + " "
+                + wordStack.pop() + " "
+                + wordStack.pop() + " "
+                + wordStack.pop() + " "
+                + wordStack.pop()
+        );
+    }
+}

src/dev/sowinski/comp1510/assignment1/q4/Pack.java

@@ -0,0 +1,69 @@
+package dev.sowinski.comp1510.assignment1.q4;
+
+import java.util.Scanner;
+
+/**
+ * Pack encodes 5 MIX-character strings into a
+ * single int variable, while also being able to
+ * decode an int variable back to the original
+ * characters.
+ * 
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
+public class Pack {
+
+    /**
+     * main program entry.
+     * @param args unused
+     */
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        System.out.print("Enter 5 MIX-characters (A-I): ");
+        String raw = scan.nextLine();
+        scan.close();
+
+        final int idx0 = 0;
+        final int idx1 = 1;
+        final int idx2 = 2;
+        final int idx3 = 3;
+        final int idx4 = 4;
+        
+        char c1 = raw.charAt(idx0);
+        char c2 = raw.charAt(idx1);
+        char c3 = raw.charAt(idx2);
+        char c4 = raw.charAt(idx3);
+        char c5 = raw.charAt(idx4);
+        
+        final int base = 56;
+                
+        int encoded = (int) (c1 - 'A' + 1) * (int) Math.pow(base, idx4)
+                          + (c2 - 'A' + 1) * (int) Math.pow(base, idx3)
+                          + (c3 - 'A' + 1) * (int) Math.pow(base, idx2)
+                          + (c4 - 'A' + 1) * (int) Math.pow(base, idx1)
+                          + (c5 - 'A' + 1) * (int) Math.pow(base, idx0);
+        
+        System.out.println("Encoded: " + encoded);
+        
+        char decodeC5 = (char) ((encoded % base) - 1 + 'A');
+        encoded /= base;
+
+        char decodeC4 = (char) ((encoded % base) - 1 + 'A');
+        encoded /= base;
+
+        char decodeC3 = (char) ((encoded % base) - 1 + 'A');
+        encoded /= base;
+
+        char decodeC2 = (char) ((encoded % base) - 1 + 'A');
+        encoded /= base;
+
+        char decodeC1 = (char) ((encoded % base) - 1 + 'A');
+
+        System.out.println("Decoded: "
+                + decodeC1
+                + decodeC2
+                + decodeC3
+                + decodeC4
+                + decodeC5);
+    }
+}