update package names + lab4

.classpath

@@ -6,5 +6,6 @@
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" path="test"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

.gitignore

@@ -1,5 +1,2 @@
-# Test files
-src/test/*
-
 # class files
 bin/*

src/dev/sowinski/comp1510/lab0/HelloWorld.java

@@ -1,4 +1,4 @@
-package lab0;
+package dev.sowinski.comp1510.lab0;
 
 /**
  * HelloWorld prints hello world.

src/dev/sowinski/comp1510/lab1/Birds.java

@@ -1,4 +1,4 @@
-package lab1;
+package dev.sowinski.comp1510.lab1;
 
 /**
  * Birds demos concatonation.

src/dev/sowinski/comp1510/lab1/Count.java

@@ -1,4 +1,4 @@
-package lab1;
+package dev.sowinski.comp1510.lab1;
 
 /**
 * This program prints out 1 to 5 in three languages.

src/dev/sowinski/comp1510/lab1/Hello.java

@@ -1,4 +1,4 @@
-package lab1;
+package dev.sowinski.comp1510.lab1;
 
 /**
  * Prints hello world message.

src/dev/sowinski/comp1510/lab1/Plus.java

@@ -1,4 +1,4 @@
-package lab1;
+package dev.sowinski.comp1510.lab1;
 
 /**
 * Plus demonstrates the different behaviours of the + operator.

src/dev/sowinski/comp1510/lab1/Poem.java

@@ -1,4 +1,4 @@
-package lab1;
+package dev.sowinski.comp1510.lab1;
 
 /**
  * Poem prints a poem.

src/dev/sowinski/comp1510/lab1/Problems.java

@@ -1,4 +1,4 @@
-package lab1;
+package dev.sowinski.comp1510.lab1;
 
 /**
  * Problems contains problems to fix.

src/dev/sowinski/comp1510/lab1/Simple.java

@@ -1,4 +1,4 @@
-package lab1;
+package dev.sowinski.comp1510.lab1;
 
 /**
  * Simple talk about valid variable identifiers.

src/dev/sowinski/comp1510/lab2/BaseConvert.java

@@ -1,4 +1,4 @@
-package lab2;
+package dev.sowinski.comp1510.lab2;
 
 import java.util.Scanner;
 

src/dev/sowinski/comp1510/lab2/Circle.java

@@ -1,4 +1,4 @@
-package lab2;
+package dev.sowinski.comp1510.lab2;
 
 import java.util.Scanner;
 

src/dev/sowinski/comp1510/lab2/Paint.java

@@ -1,4 +1,4 @@
-package lab2;
+package dev.sowinski.comp1510.lab2;
 
 import java.util.Scanner;
 

src/dev/sowinski/comp1510/lab2/Prelab.java

@@ -1,4 +1,4 @@
-package lab2;
+package dev.sowinski.comp1510.lab2;
 
 /*
  * int x;     -> initialized empty variable

src/dev/sowinski/comp1510/lab2/Student.java

@@ -1,4 +1,4 @@
-package lab2;
+package dev.sowinski.comp1510.lab2;
 
 /**
  * Student holds information of a student.

src/dev/sowinski/comp1510/lab2/Students.java

@@ -1,4 +1,4 @@
-package lab2;
+package dev.sowinski.comp1510.lab2;
 
 /**
  * Students prints a table of student info.

src/dev/sowinski/comp1510/lab3/CardGame.java

@@ -1,4 +1,4 @@
-package lab3;
+package dev.sowinski.comp1510.lab3;
 
 /**
  * CardGame give a random card.

src/dev/sowinski/comp1510/lab3/Dice.java

@@ -1,4 +1,4 @@
-package lab3;
+package dev.sowinski.comp1510.lab3;
 
 /**
  * Dice simulate dice rolling.

src/dev/sowinski/comp1510/lab3/Distance.java

@@ -1,4 +1,4 @@
-package lab3;
+package dev.sowinski.comp1510.lab3;
 
 import java.util.Scanner;
 

src/dev/sowinski/comp1510/lab3/FunWithStrings.java

@@ -1,4 +1,4 @@
-package lab3;
+package dev.sowinski.comp1510.lab3;
 
 import java.util.Scanner;
 
@@ -29,7 +29,7 @@ public class FunWithStrings {
         System.out.printf("Starts with \"The\": %b\n", 
                 book.toLowerCase().startsWith("the "));
         System.out.printf("Title uppercased: %s\n", book.toUpperCase());
-        System.out.printf("Title: %s\n", book);
+        System.out.printf("Title lowercased: %s\n", book.toLowerCase());
         
         // Very clean code here -- checkstyle
         int len = trimmedBook.length();

src/dev/sowinski/comp1510/lab4/IntegerWrapper.java

@@ -0,0 +1,46 @@
+package dev.sowinski.comp1510.lab4;
+
+import java.util.Scanner;
+
+/**
+ * IntegerWrapper provides wrapper
+ * methods for integers.
+ * 
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
+public class IntegerWrapper {
+    
+    /**
+     * main program entry.
+     * @param args cli input unused
+     */
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        System.out.println("Enter an integer: ");
+
+        int x = scan.nextInt();
+        
+        System.out.println("Binary: " + Integer.toBinaryString(x));
+        System.out.println("Octal:  " + Integer.toOctalString(x));
+        System.out.println("Hex:    " + Integer.toHexString(x));
+        System.out.println();
+
+        System.out.println("Max Value: " + Integer.MAX_VALUE);
+        System.out.println("Min Value: " + Integer.MIN_VALUE);
+        System.out.println();
+
+        System.out.print("Enter an integer: ");
+        String y = scan.next();
+        
+        System.out.print("Enter an integer: ");
+        String z = scan.next();
+        
+        scan.close();
+        
+        int a = Integer.parseInt(y);
+        int b = Integer.parseInt(z);
+        
+        System.out.println("Sum of (" + a + " + " + b + ") = " + (a + b));
+    }
+}

src/dev/sowinski/comp1510/lab4/MultiDie.java

@@ -0,0 +1,66 @@
+package dev.sowinski.comp1510.lab4;
+
+/**
+ * Represents one die (singular of dice) with faces showing values between 1 and
+ * 6.
+ * 
+ * Rename class from Die to MultiDie.
+ * 
+ * @author Lewis & Loftus 9e
+ * @author BCIT
+ * @author Braeden Sowinski
+ * @version 2025
+ */
+public class MultiDie {
+    /** Maximum face value. */
+    public final int max;
+
+    /** Current value showing on the die. */
+    private int faceValue;
+    
+    /**
+     * Constructor sets the initial face value to 1.
+     * @param numSides int Maximum face value
+     */
+    public MultiDie(int numSides) {
+        max = numSides;
+        faceValue = roll();
+    }
+
+    /**
+     * Rolls this Die and returns the result.
+     * @return faceValue as an int
+     */
+    public int roll() {
+        faceValue = (int) (Math.random() * max) + 1;
+
+        return faceValue;
+    }
+
+    /**
+     * Sets the face value of this Die to the specified value.
+     * @param value an int
+     */
+    public void setFaceValue(int value) {
+        faceValue = value;
+    }
+
+    /**
+     * Returns the face value of this Die as an int.
+     * @return faceValue as an int
+     */
+    public int getFaceValue() {
+        return faceValue;
+    }
+
+    /**
+     * Returns a String representation of this Die.
+     * @return toString description
+     */
+    public String toString() {
+        String result = Integer.toString(faceValue);
+
+        return result;
+    }
+}
+

src/dev/sowinski/comp1510/lab4/Name.java

@@ -0,0 +1,59 @@
+package dev.sowinski.comp1510.lab4;
+
+/** 
+ * Name contains name information.
+ * 
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
+public class Name {
+    
+    /** first name. */
+    private String first;
+
+    /** middle name. */
+    private String middle;
+
+    /** last name. */
+    private String last;
+
+    /**
+     * Name constructor.
+     * @param firstName stores given first name
+     * @param middleName stores given middle name
+     * @param lastName stores given last name
+     */
+    public Name(String firstName, String middleName, String lastName) {
+        first = firstName;
+        middle = middleName;
+        last = lastName;
+    }
+
+    /** getFirst.
+     * @return first name as String
+     */
+    public String getFirst() {
+        return first;
+    }
+
+    /** getMiddle.
+     * @return middle name as String
+     */
+    public String getMiddle() {
+        return middle;
+    }
+
+    /** getMiddle.
+     * @return middle name as String
+     */
+    public String getLast() {
+        return last;
+    }
+    
+    /** toString compiles all names.
+     * @return full name as String.
+     */
+    public String toString() {
+        return first + " " + middle + " " + last;
+    }
+}

src/dev/sowinski/comp1510/lab4/Names.java

@@ -0,0 +1,19 @@
+package dev.sowinski.comp1510.lab4;
+
+/** 
+ * Names test Name class.
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
+public class Names {
+
+    /**
+     * main program entry.
+     * @param args cli input unused
+     */
+    public static void main(String[] args) {
+        Name myName = new Name("Braeden", "M", "Sowinski");
+        
+        System.out.println(myName.toString());
+    }
+}

src/dev/sowinski/comp1510/lab4/RollingMultiDice.java

@@ -0,0 +1,64 @@
+package dev.sowinski.comp1510.lab4;
+
+/**
+ * RollingMultiDice test the modified MultiDie class.
+ * 
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
+public class RollingMultiDice {
+
+    /**
+     * main program entry.
+     * @param args cli input unused
+     */
+    public static void main(String[] args) {
+        final int numSides = 12;
+        
+        MultiDie die = new MultiDie(numSides);
+        
+        System.out.println(die.max);
+        /*
+         * 1. Do you need getters and setters for max? Should you have them?
+         * 
+         *    You don't need a getter for max, or a setter 
+         *    for max as it is a constant value that is set
+         *    in the constructor
+         *    
+         *    
+         * 2. Can you have getters and setters for max?
+         * 
+         *    You can have a getter, though its not needed for
+         *    max. You can't have a setter, it is a constant
+         *    value.
+         *    
+         *    
+         * 3. Why do you think it makes sense (or not) to have max be final?
+         * 
+         *    It makes sense to have max as a final (constant)
+         *    as we do not intend for a die to change its number
+         *    of faces. It has a single number of faces that does
+         *    not change.
+         *    
+         *    
+         * 4. What does max’s being final say about the abstraction of a 
+         *    MultiDie object?
+         * 
+         *    
+         * 
+         * 5. Is max an instance variable.
+         *    
+         *    Yes max is a instance variable as it is defined in the 
+         *    class level and does not have the static modifier. Each
+         *    object instance of this class will have unique max values.
+         *    
+         * 6. Should you use a record for your Die? Why or why not?
+         *  
+         *    No, using a record means max will be defined as a final
+         *    instance variable and all MultiDie objects will have the 
+         *    same max value.
+         *
+         */
+
+    }
+}

src/dev/sowinski/comp1510/lab4/Student.java

@@ -0,0 +1,120 @@
+package dev.sowinski.comp1510.lab4;
+
+/*
+ * To be updated, cannot find StudentTest.java
+ * file on D2L.
+ */
+
+/** 
+ * Student contains student info.
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
+public class Student {
+    
+    /** firstName student first name as String. */
+    private String firstName;
+    
+    /** lastName student last name as String. */
+    private String lastName;
+    
+    /** birthYear student year of birth as int. */
+    private int birthYear;
+    
+    /** gpa student GPA as int. */
+    private float gpa;
+    
+    /**
+     * Student constructor.
+     * @param first student firstname
+     * @param last student lastname
+     * @param yearOfBirth student birth year
+     * @param studentGPA student gpa
+     */
+    public Student(
+            String first, 
+            String last, 
+            int yearOfBirth, 
+            float studentGPA
+    ) {
+        firstName = first;
+        lastName = last;
+        birthYear = yearOfBirth;
+        gpa = studentGPA;
+    }
+
+    /**
+     * getFirstName returns student first name.
+     * @return the firstName
+     */
+    public String getFirstName() {
+        return firstName;
+    }
+
+    /**
+     * setFirstName updates student first name.
+     * @param firstName the firstName to set
+     */
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    /**
+     * getLastName returns student last name.
+     * @return the lastName
+     */
+    public String getLastName() {
+        return lastName;
+    }
+
+    /**
+     * setLastName updates student last name.
+     * @param lastName the lastName to set
+     */
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    /**
+     * getBirthYear returns student year of birth.
+     * @return the birthYear
+     */
+    public int getBirthYear() {
+        return birthYear;
+    }
+
+    /**
+     * setBirthYear updates student year of birth.
+     * @param birthYear the birthYear to set
+     */
+    public void setBirthYear(int birthYear) {
+        this.birthYear = birthYear;
+    }
+
+    /**
+     * getGPA returns student GPA.
+     * @return the gpa
+     */
+    public float getGPA() {
+        return gpa;
+    }
+
+    /**
+     * setGPA update student GPA.
+     * @param newGPA the gpa to set
+     */
+    public void setGPA(float newGPA) {
+        this.gpa = newGPA;
+    }
+    
+    /**
+     * toString concatonates student information.
+     * @return student info as a String
+     */
+    public String toString() {
+        return firstName + " "
+                + lastName + " ("
+                + birthYear + ") "
+                + gpa + " GPA";
+    }
+}

src/module-info.java

@@ -1,8 +0,0 @@
-/**
- * 
- */
-/**
- * 
- */
-module lab0 {
-}

test/dev/sowinski/comp1510/strings/StringReverse.java

@@ -0,0 +1,96 @@
+package dev.sowinski.comp1510.strings;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+/**
+ * StringReverse test different methods to reverse strings.
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
+public class StringReverse {
+    
+    /**
+     * linearReverse reverse strings by looping over each element.
+     * @param s string to reverse
+     * @return reversed string as String
+     */
+    public static String linearReverse(String s) {
+        String n = "";
+        for (int i = s.length() - 1; i >= 0; i--) {            
+            n += s.charAt(i);
+        }
+        return n;
+    }
+    
+    /**
+     * halfLinearReverse reverses strings by only looping
+     * over half of the string.
+     * @param s string to reverse
+     * @return reversed string
+     */
+    public static String halfLinearReverse(String s) {
+        char r;
+        char[] n = s.toCharArray();
+        for (int i = 0; i < n.length / 2; i++) {
+            r = n[n.length - 1 - i];
+            n[n.length - 1 - i] = n[i];
+            n[i] = r;
+        }
+        return new String(n);
+    }
+
+    /**
+     * main program entry.
+     * @param args unused
+     */
+    public static void main(String[] args) {
+        char[] charset = {
+            'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 
+            'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 
+            's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '1', 
+            '2', '3', '4', '5', '6', '7', '8', '9', '0'
+        };
+        String test = new String(charset);
+        
+        long start;
+        long end;
+        final int upperBound = 100000;
+        final int micro = 1000;
+
+        try {
+            PrintWriter myWriter = new PrintWriter("output.csv", "UTF-8");
+        
+            for (int i = 0; i < upperBound; i++) {
+                start = System.nanoTime();
+                String r1 = new StringBuffer(test).reverse().toString();
+                r1.length();
+                end = System.nanoTime();
+                int duration1 = (int) ((end - start) / micro);
+                
+                start = System.nanoTime();
+                r1 = halfLinearReverse(test);
+                end = System.nanoTime();
+                int duration3 = (int) ((end - start) / micro);
+    
+                int len = test.length() + 1;
+                System.out.println(len - 1);
+      
+                int rand = (int) (Math.random() * charset.length);
+                test += charset[rand];
+                
+                String data = len + ","
+                        + duration1 + ","
+                        + duration3;
+                
+                myWriter.println(data);
+            }
+            
+            myWriter.close();
+            System.out.println("Done");
+        } catch (IOException e) {
+            System.out.println("An error occured!");
+            e.printStackTrace();
+        }
+    }
+}

test/dev/sowinski/comp1510/strings/tinker.py

@@ -0,0 +1,38 @@
+import matplotlib.pyplot as plt
+import csv
+import numpy
+
+x = []
+y1 = []
+y2 = []
+
+with open('output.csv', newline='') as csvfile:
+  spamreader = csv.reader(csvfile, delimiter=',')
+  # i = 0
+  for row in spamreader:
+    # i += 1
+    x.append(int(row[0]))
+    y1.append(int(row[1]))
+    y2.append(int(row[2]))
+    # if i == 100: break
+
+x = x[0::250]
+y1 = y1[0::250]
+y2 = y2[0::250]
+
+plt.xlabel("String Length")
+plt.ylabel("Microseconds (0.000001 seconds)")
+
+plt.plot(x, y1, label="Java String Reverse")
+plt.plot(x, y2, label="Half Linear Reverse")
+
+z1 = numpy.polyfit(x, y1, 1)
+p1 = numpy.poly1d(z1)
+plt.plot(x, p1(x), "r--", label="Java String Reverse Trend")
+
+z1 = numpy.polyfit(x, y2, 1)
+p1 = numpy.poly1d(z1)
+plt.plot(x, p1(x), "g--", label="Half Linear Reverse Trend")
+
+plt.legend()
+plt.show()