add comments, override equals + hashCode methods

src/code/ca/bcit/comp2522/lab03/IDevice.java

@@ -1,18 +1,40 @@
 package ca.bcit.comp2522.lab03;
 
+/**
+ * IDevice holds common information between
+ * devices and common functionality.
+ *
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
 public abstract class IDevice {
     private final String purpose;
 
-    IDevice(final String purpose) {
+    /**
+     * IDevice constructor
+     * @param purpose of IDevice
+     */
+    public IDevice(final String purpose) {
         this.purpose = purpose;
     }
 
-    abstract void printDetails();
+    /**
+     * printDetails of IDevice child
+     */
+    public abstract void printDetails();
 
-    protected String getPurpose() {
+    /**
+     * getPurpose of IDevice
+     * @return purpose of IDevice
+     */
+    public String getPurpose() {
         return this.purpose;
     }
 
+    /**
+     * toString returns details of IDevice
+     * @return purpose of IDevice
+     */
     @Override
     public String toString() {
         return this.purpose;

src/code/ca/bcit/comp2522/lab03/IPad.java

@@ -1,10 +1,22 @@
 package ca.bcit.comp2522.lab03;
 
+/**
+ * IPad is an IDevice that contains related variables to IPads
+ * such as operating system version, and if it has a case.
+ *
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
 public class IPad extends IDevice {
     private final boolean hasCase;
     private final String OSVersion;
 
-    IPad(
+    /**
+     * IPad constructor
+     * @param hasCase determines if the IPad has a case
+     * @param OSVersion of the IPad
+     */
+    public IPad(
         final boolean hasCase,
         final String OSVersion
     ) {
@@ -14,7 +26,19 @@ public class IPad extends IDevice {
         this.OSVersion = OSVersion;
     }
 
-    protected void printDetails() {
+    /**
+     * getOSVersion of IPad
+     * @return operating system version
+     */
+    public String getOSVersion() {
+        return this.OSVersion;
+    }
+
+    /**
+     * printDetails of IPad including if it has a case
+     * and which operating system version it is running
+     */
+    public void printDetails() {
         final StringBuilder details;
 
         details = new StringBuilder();
@@ -27,8 +51,46 @@ public class IPad extends IDevice {
         System.out.println(details.toString());
     }
 
+    /**
+     * toString returns the simple string details of the IPad
+     * @return IPad instance variables
+     */
     @Override
     public String toString() {
         return super.toString() + " " + this.hasCase + " " + this.OSVersion;
     }
+
+    /**
+     * equals check if a given IPad has the same operating
+     * system version as this IPad
+     * @param o the reference object with which to compare.
+     * @return if the IPads have the same OS Version
+     */
+    @Override
+    public boolean equals(final Object o) {
+        // Ensure object exists
+        if (o == null) {
+            return false;
+        }
+
+        // Ensure object is an IPad
+        if(!(o.getClass().equals(this.getClass()))) {
+            return false;
+        }
+
+        final IPad otherIPad;
+
+        otherIPad = (IPad) o;
+
+        return otherIPad.getOSVersion().equals(this.OSVersion);
+    }
+
+    /**
+     * hashCode of IPad
+     * @return hash code of IPad
+     */
+    @Override
+    public int hashCode() {
+        return this.OSVersion.hashCode();
+    }
 }

src/code/ca/bcit/comp2522/lab03/IPhone.java

@@ -1,10 +1,25 @@
 package ca.bcit.comp2522.lab03;
 
+/**
+ * IPhone is an IDevice that has a phone plan from a carrier, and
+ * how many minutes remain on the phone plan.
+ *
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
 public class IPhone extends IDevice {
+    private static final int IPHONE_HASH = 11;
+    private static final int IPHONE_HASH_CODE = 101;
+
     private final double remainingPhonePlanMinutes;
     private final String carrier;
 
-    IPhone(
+    /**
+     * IPhone constructor
+     * @param remainingPhonePlanMinutes on this IPhone
+     * @param carrier that the phone plan is registered to
+     */
+    public IPhone(
         final double remainingPhonePlanMinutes,
         final String carrier
     ) {
@@ -14,7 +29,19 @@ public class IPhone extends IDevice {
         this.carrier = carrier;
     }
 
-    protected void printDetails() {
+    /**
+     * getRemainingPhonePlanMinutes of this IPHone
+     * @return remaining phone plan minutes
+     */
+    public double getRemainingPhonePlanMinutes() {
+        return this.remainingPhonePlanMinutes;
+    }
+
+    /**
+     * printDetails of IPhone including carrier and remaining
+     * phone plan minutes
+     */
+    public void printDetails() {
         final StringBuilder details;
 
         details = new StringBuilder();
@@ -27,8 +54,49 @@ public class IPhone extends IDevice {
         System.out.println(details.toString());
     }
 
+    /**
+     * toString returns the simple string details of the IPhone
+     * @return IPhone instance variables
+     */
     @Override
     public String toString() {
         return super.toString() + " " + this.remainingPhonePlanMinutes + " " + this.carrier;
     }
+
+
+    /**
+     * equals check if a given IPhone has the same remaining
+     * phone plan minutes as this IPhone.
+     * @param o the reference object with which to compare.
+     * @return if the IPhone has the same remaining phone plan minutes
+     */
+    @Override
+    public boolean equals(final Object o) {
+        // Ensure object exists
+        if (o == null) {
+            return false;
+        }
+
+        // Ensure object is an IPhone
+        if(!(o.getClass().equals(this.getClass()))) {
+            return false;
+        }
+
+        final IPhone otherIPhone;
+
+        otherIPhone = (IPhone) o;
+
+        return otherIPhone.getRemainingPhonePlanMinutes() == this.remainingPhonePlanMinutes;
+    }
+
+    /**
+     * hashCode of IPhone
+     * @return hash code of IPhone
+     */
+    @Override
+    public int hashCode() {
+        int hash;
+        hash = IPHONE_HASH_CODE * IPHONE_HASH * (int) this.remainingPhonePlanMinutes;
+        return hash;
+    }
 }

src/code/ca/bcit/comp2522/lab03/IPhone16.java

@@ -1,10 +1,26 @@
 package ca.bcit.comp2522.lab03;
 
+/**
+ * IPhone16 extends the IPhone and has additional
+ * features.
+ *
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
 public class IPhone16 extends IPhone {
+    private static final int IPHONE_HASH_WITH_HIGH_RES = 103;
+
     final boolean highResolutionCamera;
     final int memoryGB;
 
-    IPhone16(
+    /**
+     * IPhone16 constructor
+     * @param remainingPhonePlanMinutes of this IPhone
+     * @param carrier that the phone plan is registered to
+     * @param highResolutionCamera status of this IPhone
+     * @param memoryGB of this IPhone
+     */
+    public IPhone16(
         final double remainingPhonePlanMinutes,
         final String carrier,
         final boolean highResolutionCamera,
@@ -15,4 +31,79 @@ public class IPhone16 extends IPhone {
         this.highResolutionCamera = highResolutionCamera;
         this.memoryGB = memoryGB;
     }
+
+    /**
+     * getHghResolutionCamera status of this IPhone
+     * @return if this IPhone has a high resolution camera
+     */
+    public boolean getHighResolutionCamera() {
+        return this.highResolutionCamera;
+    }
+
+    /**
+     * toString returns the simple string details of the IPhone16
+     * @return IPhone16 instance variables
+     */
+    @Override
+    public String toString() {
+        final StringBuilder builder;
+
+        builder = new StringBuilder();
+        builder.append(super.toString());
+        builder.append(" high-res camera: ");
+        builder.append(this.highResolutionCamera);
+        builder.append(" memory GB: ");
+        builder.append(this.memoryGB);
+
+        return builder.toString();
+    }
+
+    /**
+     * equals check if a given IPhone16 has the same remaining
+     * phone plan minutes as this IPhone16 and both have high
+     * resolution cameras.
+     * @param o the reference object with which to compare.
+     * @return if the IPhone has the same remaining phone plan minutes and high resolution camera
+     */
+    @Override
+    public boolean equals(final Object o) {
+        // Ensure object exists
+        if (o == null) {
+            return false;
+        }
+
+        // Ensure object is an IPhone
+        if(!(o.getClass().equals(this.getClass()))) {
+            return false;
+        }
+
+        final IPhone16 otherIPhone;
+
+        otherIPhone = (IPhone16) o;
+
+        final boolean matchingMinutes;
+        final boolean matchingCameraResolution;
+
+        matchingMinutes = otherIPhone.getRemainingPhonePlanMinutes() == this.getRemainingPhonePlanMinutes();
+        matchingCameraResolution = this.highResolutionCamera && otherIPhone.getHighResolutionCamera();
+
+        return matchingMinutes && matchingCameraResolution;
+    }
+
+    /**
+     * hashCode of IPhone16
+     * @return hash code of IPhone16
+     */
+    @Override
+    public int hashCode() {
+        int hash;
+
+        hash = super.hashCode();
+
+        if (this.highResolutionCamera) {
+            hash *= IPHONE_HASH_WITH_HIGH_RES;
+        }
+
+        return hash;
+    }
 }

src/code/ca/bcit/comp2522/lab03/IPod.java

@@ -1,10 +1,25 @@
 package ca.bcit.comp2522.lab03;
 
+/**
+ * IPod is an IDevice that has a number of songs and a max
+ * volume in decibels.
+ *
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
 public class IPod extends IDevice {
+    private static final int IPOD_HASH = 7;
+    private static final int IPOD_HASH_CODE = 97;
+
     private final int numberOfSongs;
     private final double maxVolumeDecibels;
 
-    IPod(
+    /**
+     * IPod constructor
+     * @param numberOfSongs the IPod is holding
+     * @param maxVolumeDecibels is the maximum volume
+     */
+    public IPod(
         final int numberOfSongs,
         final double maxVolumeDecibels
     ) {
@@ -14,7 +29,11 @@ public class IPod extends IDevice {
         this.maxVolumeDecibels = maxVolumeDecibels;
     }
 
-    protected void printDetails() {
+    /**
+     * printDetails of IPod including number of songs
+     * and max volume in decibels.
+     */
+    public void printDetails() {
         final StringBuilder details;
 
         details = new StringBuilder();
@@ -27,8 +46,56 @@ public class IPod extends IDevice {
         System.out.println(details.toString());
     }
 
+    /**
+     * getNumberOfSongs of the IPod
+     * @return the number of songs
+     */
+    public int getNumberOfSongs() {
+        return this.numberOfSongs;
+    }
+
+    /**
+     * toString returns the simple string details of the IPod
+     * @return IPod instance variables
+     */
     @Override
     public String toString() {
         return super.toString() + " " +  this.numberOfSongs + " " + this.maxVolumeDecibels;
     }
+
+    /**
+     * equals check if a given IPod has the same number of songs as
+     * this IPod
+     * @param o the reference object with which to compare.
+     * @return if the IPods have the same number of songs
+     */
+    @Override
+    public boolean equals(final Object o) {
+        // Ensure object exists
+        if (o == null) {
+            return false;
+        }
+
+        // Ensure object is an IPod
+        if(!(o.getClass().equals(this.getClass()))) {
+            return false;
+        }
+
+        final IPod otherIPod;
+
+        otherIPod = (IPod) o;
+
+        return otherIPod.getNumberOfSongs() == this.numberOfSongs;
+    }
+
+    /**
+     * hashCode of IPod
+     * @return hash code of IPod
+     */
+    @Override
+    public int hashCode() {
+        int hash;
+        hash = IPOD_HASH_CODE * IPOD_HASH + this.numberOfSongs;
+        return hash;
+    }
 }

src/code/ca/bcit/comp2522/lab03/Main.java

@@ -1,6 +1,17 @@
 package ca.bcit.comp2522.lab03;
 
+/**
+ * Main class to test IDevice classes, and abstract concepts.
+ *
+ * @author Braeden Sowinski
+ * @version 1.0.0
+ */
 public class Main {
+
+    /**
+     * main program entry
+     * @param args from user input
+     */
     public static void main(final String[] args) {
         // Create IPod objects
         final IPod ipod1;