Programming Section

functions$($cpp$),$ Methods for java

A company employes $75$ employees, and assigned a unique id number for each employee ranges between $1$ to $999,$

The employees$$ records are to be stored in a file using the modules hashing method, the file size is $100.$

a$)$ Write a function$/$method which receives the employee id from main and finds the hashed key using the modulus $\%$ approach.$$

b$)$ Explain what happens when a collision occurs and how you would resolve it$.$