$/**$

$*$

$*$ @author blaze

$*/$

$/**$

$*$ Represents a hash table for storing dated entries.

$*/$

public class DateHashTable $\{$

private DatedEntry$[]$ table;

private int numElements; $//$ Number of elements stored in the hash table

$/**$

$*$ Constructs a DateHashTable with the specified size.

$*$

$*$ @param size The size of the hash table.

$*/$

public DateHashTable$($int size$)\{$

table $=$ new DatedEntry$[$size$]$;

numElements $=0$;

$\}$

$//$ Manage entries in the table

$/**$

$*$ Checks if the given entry already exists in the hash table.

$*$

$*$ @param entry The entry to check.

$*$ @return true if the entry already exists, false otherwise.

$*/$

public boolean entryExists$($DatedEntry entry$)\{$

int index $=$ hashKey$($entry$)$;

return table$[$index$]!=$ null && table$[$index$].$getDate$().$equals$($entry$.$getDate$())$;

$\}$

$/**$

$*$ Stores the given entry in the hash table.

$*$

$*$ @param entry The entry to store.

$*$ @return true if the entry is stored successfully, false otherwise.

$*/$

public boolean storeEntry$($DatedEntry entry$)\{$

int index $=$ hashKey$($entry$)$;

if $($entryExists$($entry$))\{$

table$[$index$]=$ entry; $//$ Replace existing entry with the same date

return true;

$\}$ else if $($table$[$index$]==$ null$)\{$

table$[$index$]=$ entry; $//$ Store the entry in an empty slot

numElements$++$; $//$ Increment the count of total entries stored

return true;

$\}$

return false; $//$ Unable to store entry

$\}$

$/**$

$*$ Retrieves the entry stored for the given key date.

$*$

$*$ @param keyDate The key date to retrieve the entry for.

$*$ @return The entry stored for the given key date, or null if not found.

$*/$

public DatedEntry getEntry$($String keyDate$)\{$

$//$ Create a temporary entry for hashing

int index $=$ hashKey$($new DatedEntry$($keyDate$,""))$;

return table$[$index$]$;

$\}$

$/**$

$*$ Computes the hash key $($index$)$ for the given entry.

$*$

$*$ @param entry The entry for which to compute the hash key.

$*$ @return The computed hash key $($index$).$

$*/$

public int hashKey$($DatedEntry entry$)\{$

int month $=$ entry.getMonth$()$;

int bucketStart $=$ bucketStartIdx$($month$)$;

int bucketEnd $=$ bucketEndIdx$($month$)$;

for $($int i $=$ bucketStart; i $<=$ bucketEnd; i$++)\{$

int index $=$ i $\%$ table.length; $//$ Ensure index stays within array bounds

if $($table$[$index$]==$ null $||$ table$[$index$].$getDate$().$equals$($entry$.$getDate$()))\{$

$//$ Return index if slot is empty or contains entry with same date

return index;

$\}$

$\}$

return $-1$; $//$ Unable to find suitable slot

$\}$

$//$ Other accessor methods

$/**$

$*$ Retrieves the size of the internal table.

$*$

$*$ @return The size of the internal table.

$*/$

public int getTableSize$()\{$

return table.length;

$\}$

$/**$

$*$ Retrieves the number of elements stored in the hash table.

$*$

$*$ @return The number of elements stored in the hash table.

$*/$

public int getNumElements$()\{$

return numElements;

$\}$

$/**$

$*$ Retrieves the number of entries stored in the corresponding bucket for

$*$ the given month.

$*$

$*$ @param month The month for which to retrieve the number of entries.

$*$ @return The number of entries stored in the corresponding bucket for the

$*$ given month.

$*/$

public int getNumElementsInMonth$($int month$)\{$

int count $=0$;

int bucketStart $=$ bucketStartIdx$($month$)$;

int bucketEnd $=$ bucketEndIdx$($month$)$;

for $($int i $=$ bucketStart; i $<=$ bucketEnd; i$++)\{$

if $($table$[$i $\%$ table.length$]!=$ null$)\{$

count$++$;

$\}$

$\}$

return count;

$\}$

$/**$

$*$ Computes the starting index of the bucket for the given month.

$*$

$*$ @param month The month for which to compute the starting index.

$*$ @return The starting index of the bucket for the given month.

$*/$

public int bucketStartIdx$($int month$)\{$

return $($month $-1)*($table$.$length $/12)$;

$\}$

$/**$

$*$ Computes the ending index of the bucket for the given month.

$*$

$*$ @param month The month for which to compute the ending index.

$*$ @return The ending index of the bucket for the given month.

$*/$

public int bucketEndIdx$($int month$)\{$

if $($month $==12)\{$

$//$ Last bucket ends at last index of the table

return table.length $-1$;

$\}$ else $\{$

int endIndex $=($month $*($table$.$length $/12))-1$;

$//$ Ensure the endIndex doesn't exceed the table length

return Math.min$($endIndex$,$ table.length $-1)$;

$\}$

$\}$

$\}$

This Code when in a grading scale gives the feedback and i dont know how to fix it:

DatedEntry$/$test$/$DateHashTable$.$java, Line $32,$ ArrayIndexOutOfBoundsException: overflow Janurary