.idea/.gitignore

@@ -8,5 +8,4 @@
 /dataSources.local.xml
 
 .iml
-.xml# GitHub Copilot persisted chat sessions
+.xml
-/copilot/chatSessions

src/Assignments/A3/InterpolationSearch.java

@@ -48,16 +48,20 @@ public class InterpolationSearch {
             /* Checks if high is the same thing as low to prevent division by zero. */
             if (high != low) {
                 probe = low + (((key - array[low]) * (high - low)) / (array[high] - array[low]));
+
+                /* This is here due to the fact that it is not always divided as there is only 1 element left. */
                 this.divisions++;
             } else {
                 probe = high;
+                if (array[probe] != key) {
+                    break;
+                }
             }
 
             /* Checks if it passed the element due to it not being in list. */
             if (array[high] < key || array[low] > key) {
                 break;
             }
-
             /* Checks if the key is less than the probe's value */
             if (array[probe] > key) {
                 high = probe - 1;

src/Assignments/A3/TestInterpolationSearch.java

@@ -9,128 +9,6 @@ public class TestInterpolationSearch {
     /** Holds the size of the table to generate */
     public int tableSize;
 
-    public static void main(String[] args) {
-        TestInterpolationSearch program = new TestInterpolationSearch();
-        program.start();
-    }
-
-    /**
-     * Used as the main sentential loop and loops until the exit option is selected.
-     *
-     * @precondition none
-     * @postcondition none
-     */
-    public void start() {
-        int option = this.getOption();
-        while (option != 4) {
-            this.executeOption(option);
-            option = this.getOption();
-        }
-    }
-
-    /**
-     * Displays the menu options.
-     *
-     * @precondition none
-     * @postcondition the menu is displayed.
-     */
-    private void displayMenu() {
-        System.out.println("----------------------MAIN MENU-------------------");
-        System.out.println("1. Create, populate, and display array Values[]");
-        System.out.println("2. Read output table size");
-        System.out.println("3. Run interpolation search and display outputs");
-        System.out.println("4. Exit program");
-        System.out.println();
-    }
-
-    /**
-     * Prints out the menu of options, asks for an input, and if that input is invalid it prints an error and
-     * prompts the user again for the input.
-     *
-     * @precondition none
-     * @postcondition none
-     *
-     * @return the option selected
-     */
-    private int getOption() {
-        this.displayMenu(); // Prints out the menu
-
-        // Asks for the option and begins the loop until a valid option is gathered.
-        System.out.print("Enter option number: ");
-        int input = getIntegerInput();
-        while (input < 1 || input > 4) { // Compares it to the valid options available.
-            System.out.println("\nPlease enter a valid input.");
-            System.out.print("Enter option number: ");
-            input = getIntegerInput();
-        }
-        System.out.println();
-        return input;
-    }
-
-    /**
-     * Gets user input to a number. A prompt must be provided prior to running this method.
-     * If the input was not an integer/(unable to be autoboxed), returns -1.
-     *
-     * @precondition none
-     * @postcondition none
-     *
-     * @return the integer input, if invalid -1.
-     */
-    protected int getIntegerInput() {
-        Scanner sc = new Scanner(System.in);
-        try {
-            String textInput = sc.nextLine();
-            return Integer.parseInt(textInput);
-        } catch (Exception e) {
-            return -1;
-        }
-    }
-
-    public void executeOption(int option) {
-        /* The option used for the values generation */
-        if (option == 1) {
-            this.randomDistinct();
-            System.out.println("The generated Values: ");
-
-            /* Displays the generated values */
-            for (int i = 0; i < this.values.length; i++) {
-                System.out.print(String.format("%-6s", this.values[i]));
-                /* Splits the rows at 30 columns */
-                if ((i+1) % 30 == 0) {
-                    System.out.println();
-                }
-            }
-            System.out.println();
-        } else if (option == 2) { /* Handles the table size */
-            System.out.println("Enter the table size: ");
-            System.out.print("Option: ");
-            int size = -1;
-            size = getIntegerInput();
-
-            /* Used if the table input is invalid */
-            while (size < 1) {
-                System.out.println("Enter a valid table size: (size > 0)");
-                System.out.print("Option: ");
-                size = getIntegerInput();
-            }
-            this.tableSize = size;
-        } else if (option == 3) { /* Generates and displays the table */
-            if (this.values == null) { /* Used to check if the values have been generated */
-                System.out.println("Please generate the values first.");
-                System.out.println();
-                return;
-            }
-            if (this.tableSize < 1) { /* Used to check if the table size has been set */
-                System.out.println("Please enter a table size.");
-                System.out.println();
-                return;
-            }
-            /* Runs the search */
-            this.runIntSearch();
-        }
-        System.out.println();
-    }
-
     /**
      * Generates a list of 1024 random, non-repeating, integers and assigns them to the values field.
      */
@@ -159,21 +37,15 @@ public class TestInterpolationSearch {
     }
 
     public void runIntSearch() {
-        System.out.println(this.values.length + " " + this.tableSize);
+        int totalDivisions;
-        int totalDivisions = 0;
         Random rand = new Random();
 
-        System.out.println("  " + String.format("%-10s%-10s%-10s%-10s", "Key", "Found", "Index", "Divisions"));
+        System.out.println("  Key\t\tFound\t\tIndex\t\tDivisions");
         System.out.println("----------------------------------------------");
         for (int i = 0; i < this.tableSize; i++) {
             int key = rand.nextInt(9999) + 1;
             InterpolationSearch results = new InterpolationSearch(this.values, key);
-            System.out.println("  " + String.format("%-10s%-10s%-10s%-10s", key, results.isFound(), results.getIndex(), results.getDivisions()));
+            System.out.println("  " + key + "\t\t" + results.isFound() + "\t\t" + results.getIndex() + "\t\t" + results.getDivisions());
-            totalDivisions += results.getDivisions();
+        }
-        }
-        double averageDivs = (double) totalDivisions / (double) this.tableSize;
-        System.out.println("\nDivisions average:    " + averageDivs);
-        System.out.println("Difference:           " + Math.abs(3.322 - averageDivs));
-        System.out.println();
     }
 }