Fixed Type conversion error in BloomFilter.java Added RemoveStars and ComplexNumberMultiplication

[SwarritSrivastava]

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized it.
• All filenames are in PascalCase.
• All functions and variable names follow Java naming conventions.
• All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• All new code is formatted with clang-format -i --style=file path/to/your/file.java

What does this PR do?

Adds two new string algorithms:

1. RemoveStars

   • Removes each '*' and its closest non-star character to the left.
   • Example: "abbc**def*g" → "abdeg"

2. ComplexNumberMultiplication

   • Multiplies two complex numbers represented as strings.
   • Example: "1+1i" * "1+1i" → "0+2i"

Checklist

• Added Javadoc comments
• Added JUnit tests
• Code passes Checkstyle, PMD, and SpotBugs
• Verified locally with mvn clean verify

This is my contribution for Hacktoberfest 2025

[codecov-commenter]

Codecov Report

❌ Patch coverage is 62.79070% with 16 lines in your changes missing coverage. Please review.
✅ Project coverage is 76.42%. Comparing base (b1aa896) to head (2f43688).

Files with missing lines	Patch %	Lines
...rithms/datastructures/bloomfilter/BloomFilter.java	20.00%	8 Missing and 8 partials ⚠️

Additional details and impacted files

@@ Coverage Diff @@ ## master #6678 +/- ## ============================================ - Coverage 76.45% 76.42% -0.04%  - Complexity 5985 5992 +7  ============================================ Files 716 718 +2 Lines 20265 20307 +42 Branches 3929 3940 +11 ============================================ + Hits 15494 15519 +25  - Misses 4180 4189 +9  - Partials 591 599 +8 

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[DenizAltunkapan]

@SwarritSrivastava

[DenizAltunkapan]

Are all these if-else branches really necessary?

You’re manually handling every primitive array type here (byte[], int[], double[], etc.), but this can be simplified. Java’s reflection API allows a more concise and general approach — you can check key.getClass().isArray() and then use either Arrays.toString((Object) key) for primitive arrays or Arrays.deepToString((Object[]) key) for object arrays.

[DenizAltunkapan]

Wouldn’t this class be a better fit for the math package?