Initial commit

.idea/checkstyle-idea.xml

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\ No newline at end of file

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.idea/misc.xml

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+      </item>
+    </group>
+  </component>
+</project>
\ No newline at end of file

.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$USER_HOME$" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

project03-guitar.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/tests" isTestSource="true" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module" module-name="data-structures" />
+    <orderEntry type="library" name="com.github.javaparser:javaparser-core:3.5.12" level="project" />
+    <orderEntry type="library" scope="TEST" name="org.hamcrest:hamcrest-all:1.3" level="project" />
+    <orderEntry type="library" name="org.junit.jupiter:junit-jupiter-params:5.4.0-SNAPSHOT" level="project" />
+  </component>
+</module>
\ No newline at end of file

src/edu/caltech/cs2/datastructures/ArrayDeque.java

+package edu.caltech.cs2.datastructures;
+
+import edu.caltech.cs2.interfaces.IDeque;
+import edu.caltech.cs2.interfaces.IQueue;
+import edu.caltech.cs2.interfaces.IStack;
+
+import java.util.Iterator;
+
+public class ArrayDeque<E> implements IDeque<E>, IQueue<E>, IStack<E> {
+
+    @Override
+    public void addFront(E e) {
+
+    }
+
+    @Override
+    public void addBack(E e) {
+
+    }
+
+    @Override
+    public E removeFront() {
+        return null;
+    }
+
+    @Override
+    public E removeBack() {
+        return null;
+    }
+
+    @Override
+    public boolean enqueue(E e) {
+        return false;
+    }
+
+    @Override
+    public E dequeue() {
+        return null;
+    }
+
+    @Override
+    public boolean push(E e) {
+        return false;
+    }
+
+    @Override
+    public E pop() {
+        return null;
+    }
+
+    @Override
+    public E peek() {
+        return null;
+    }
+
+    @Override
+    public E peekFront() {
+        return null;
+    }
+
+    @Override
+    public E peekBack() {
+        return null;
+    }
+
+    @Override
+    public Iterator<E> iterator() {
+        return null;
+    }
+
+    @Override
+    public int size() {
+        return 0;
+    }
+}

src/edu/caltech/cs2/datastructures/CircularArrayFixedSizeQueue.java

+package edu.caltech.cs2.datastructures;
+
+import edu.caltech.cs2.interfaces.IFixedSizeQueue;
+
+import java.util.Iterator;
+
+public class CircularArrayFixedSizeQueue<E> implements IFixedSizeQueue<E> {
+
+    @Override
+    public boolean isFull() {
+        return false;
+    }
+
+    @Override
+    public int capacity() {
+        return 0;
+    }
+
+    @Override
+    public boolean enqueue(E e) {
+        return false;
+    }
+
+    @Override
+    public E dequeue() {
+        return null;
+    }
+
+    @Override
+    public E peek() {
+        return null;
+    }
+
+    @Override
+    public int size() {
+        return 0;
+    }
+
+    @Override
+    public Iterator<E> iterator() {
+        return null;
+    }
+}

src/edu/caltech/cs2/datastructures/LinkedDeque.java

+package edu.caltech.cs2.datastructures;
+
+import edu.caltech.cs2.interfaces.IDeque;
+import edu.caltech.cs2.interfaces.IQueue;
+import edu.caltech.cs2.interfaces.IStack;
+
+import java.util.Iterator;
+
+public class LinkedDeque<E> implements IDeque<E>, IQueue<E>, IStack<E> {
+
+    @Override
+    public void addFront(E e) {
+
+    }
+
+    @Override
+    public void addBack(E e) {
+
+    }
+
+    @Override
+    public E removeFront() {
+        return null;
+    }
+
+    @Override
+    public E removeBack() {
+        return null;
+    }
+
+    @Override
+    public boolean enqueue(E e) {
+        return false;
+    }
+
+    @Override
+    public E dequeue() {
+        return null;
+    }
+
+    @Override
+    public boolean push(E e) {
+        return false;
+    }
+
+    @Override
+    public E pop() {
+        return null;
+    }
+
+    @Override
+    public E peek() {
+        return null;
+    }
+
+    @Override
+    public E peekFront() {
+        return null;
+    }
+
+    @Override
+    public E peekBack() {
+        return null;
+    }
+
+    @Override
+    public Iterator<E> iterator() {
+        return null;
+    }
+
+    @Override
+    public int size() {
+        return 0;
+    }
+}
\ No newline at end of file

src/edu/caltech/cs2/interfaces/ICollection.java

+package edu.caltech.cs2.interfaces;
+
+import java.util.Iterator;
+
+/**
+ * This interface represents some group or collection of elements.
+ * @param <E> Element type
+ */
+public interface ICollection<E> extends Iterable<E> {
+
+  /**
+   * Add an element to the collection.
+   * @param e Element to add
+   */
+  public void add(E e);
+
+  /**
+   * Removes all elements from the collection.
+   */
+  public void clear();
+
+  /**
+   * Generates an iterator over the collection.
+   * @return Iterator over the collection
+   */
+  public Iterator<E> iterator();
+
+  /**
+   * Checks if an element is contained in the collection.
+   * @param e Element to check for
+   * @return True if element is contained in collection, false otherwise
+   */
+  default public boolean contains(E e) {
+    for (E item : this) {
+      if (e == null ? item == null : e.equals(item)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * Calculates the size of the collection.
+   * @return Number of elements in the collection
+   */
+  public int size();
+
+  /**
+   * Checks whether the collection contains no elements.
+   * @return True if no elements are contained, false otherwise
+   */
+  default public boolean isEmpty() {
+    return this.size() == 0;
+  }
+}

src/edu/caltech/cs2/interfaces/IDeque.java

+package edu.caltech.cs2.interfaces;
+
+/**
+ * This interface represents a deque - a data structure that can add and remove elements from either end of a list.
+ * @param <E> Element type
+ */
+public interface IDeque<E> extends ICollection<E> {
+
+  /**
+   * Add an element to the front end of the deque.
+   * @param e Element to add
+   */
+  public void addFront(E e);
+
+  /**
+   * Add an element to the back end of the deque.
+   * @param e Element to add
+   */
+  public void addBack(E e);
+
+  /**
+   * Adds an element to the collection.
+   * @param e Element to add
+   */
+  default public void add(E e){
+    this.addFront(e);
+  }
+
+  /**
+   * Adds a collection of elements to this collection.
+   * @param c Collection of elements to add
+   */
+  default public void addAll(ICollection<E> c) {
+    for (E e : c) {
+      this.add(e);
+    }
+  }
+
+  /**
+   * Removes and returns the element at the front end of the deque. Returns null if deque is empty.
+   * @return Element at front, if one exists; null otherwise
+   */
+  public E removeFront();
+
+  /**
+   * Removes and returns the element at the back end of the deque. Returns null if deque is empty.
+   * @return Element at back, if one exists; null otherwise
+   */
+  public E removeBack();
+
+  /**
+   * Removes all elements in the deque.
+   */
+  default public void clear() {
+    while (!this.isEmpty()) {
+      this.removeBack();
+    }
+  }
+
+  /**
+   * Returns (but does not remove) the element at one end of the deque. Returns null if deque is empty.
+   * Note: The side you peek from should be chosen such that both the IQueue and IStack interfaces are implemented correctly.
+   * @return Element at one end, if one exists; null otherwise
+   */
+  public E peek();
+
+  /**
+   * Returns (but does not remove) the element at the front end of the deque. Returns null if deque is empty.
+   * @return Element at front, if one exists; null otherwise
+   */
+  public E peekFront();
+
+  /**
+   * Returns (but does not remove) the element at the back end of the deque. Returns null if deque is empty.
+   * @return Element at back, if one exists; null otherwise
+   */
+  public E peekBack();
+
+}

src/edu/caltech/cs2/interfaces/IFixedSizeQueue.java

+package edu.caltech.cs2.interfaces;
+
+/**
+ * This interface represents a fixed-size queue - a queue with a constant and finite capacity.
+ * @param <E> Element type
+ */
+public interface IFixedSizeQueue<E> extends IQueue<E> {
+
+  /**
+   * Checks whether the fixed-size queue is full.
+   * @return True if full, false otherwise
+   */
+  public boolean isFull();
+
+  /**
+   * Calculates the maximum capacity of the queue.
+   * @return Maximum capacity of the queue
+   */
+  public int capacity();
+}
\ No newline at end of file

src/edu/caltech/cs2/interfaces/IQueue.java

+package edu.caltech.cs2.interfaces;
+
+/**
+ * This interface represents a queue - a data structure that can add elements at one end and remove them from the other.
+ * @param <E> Element type
+ */
+public interface IQueue<E> extends Iterable<E> {
+  /**
+   * Adds an element to the back of the queue.
+   * @param e Element to add
+   * @return True if successful, false otherwise (i.e. fixed data structure is full)
+   */
+  public boolean enqueue(E e);
+
+  /**
+   * Removes and returns the element at the front of the queue. Returns null if queue is empty.
+   * @return Element at front of queue, if one exists; null otherwise
+   */
+  public E dequeue();
+
+  /**
+   * Returns (but does not remove) the element at the front of the queue. Returns null if queue is empty.
+   * @return Element at front of queue, if one exists; null otherwise
+   */
+  public E peek();
+
+  /**
+   * Calculates the size of the queue.
+   * @return Number of elements in the queue
+   */
+  public int size();
+}

src/edu/caltech/cs2/interfaces/IStack.java

+package edu.caltech.cs2.interfaces;
+
+/**
+ * This interface represents a stack - a data structure that can add elements remove elements from a single end.
+ * @param <E> Element type
+ */
+public interface IStack<E> extends Iterable<E> {
+
+  /**
+   * Adds an element to the top of the stack.
+   * @param e Element to add
+   * @return True if successful, false otherwise (i.e. fixed data structure is full)
+   */
+  public boolean push(E e);
+
+  /**
+   * Removes and returns the element at the top of the stack. Returns null if stack is empty.
+   * @return Element at top of the stack, if one exists; null otherwise
+   */
+  public E pop();
+
+  /**
+   * Returns (but does not remove) the element at the top of the stack. Returns null if stack is empty.
+   * @return Element at top of the stack, if one exists; null otherwise
+   */
+  public E peek();
+
+  /**
+   * Calculates the size of the stack.
+   * @return Number of elements in the stack
+   */
+  public int size();
+}

src/edu/caltech/cs2/project03/CircularArrayFixedSizeQueueGuitarString.java

+package edu.caltech.cs2.project03;
+
+import edu.caltech.cs2.datastructures.CircularArrayFixedSizeQueue;
+import edu.caltech.cs2.interfaces.IQueue;
+
+import java.util.Random;
+
+
+public class CircularArrayFixedSizeQueueGuitarString {
+
+  public CircularArrayFixedSizeQueueGuitarString(double frequency) {
+
+  }
+
+  public int length() {
+      return -1;
+  }
+
+  public void pluck() {
+
+  }
+
+  public void tic() {
+
+  }
+
+  public double sample() {
+      return 0;
+  }
+}