Software Java Engineer Interview Questions and Answers for Freshers

Implement programs to check array equality, find duplicates, and perform binary search algorithm in Java.

• To check if two arrays are equal, compare each element in both arrays.

• To find duplicates in an array, use a HashSet to store unique elements and identify duplicates.

• For binary search algorithm implementation, ensure the array is sorted and recursively divide the array to find the target element.

Hashing algorithm is a method used to convert data into a fixed-size string of bytes.

• Hashing algorithms are used to map data of arbitrary size to fixed-size values.

• They are commonly used in data structures like hash tables for fast data retrieval.

• Examples of hashing algorithms include MD5, SHA-1, and SHA-256.