SWT301_SE1955-JV

Defect ID: DF008

Defect Name: Missing method contract / documentation

Line Number: (entire file)

Defect Description: The file lacks JavaDoc/comments describing the expected input shapes, return shape, and the exceptions thrown, making the API harder to use correctly.

Fixing Solution: Add JavaDoc above multiplyMatrices describing parameters, return value, and preconditions/exceptions; include examples of valid shapes (e.g., A: m x n, B: n x p -> result: m x p).