HIREME SDE Intern Interview Questions and Answers

Waste management was the topic of group discussion

Q1. Difference between array and arraylist
Ans. 
Array is a fixed-size data structure while ArrayList is a dynamic-size data structure in Java.
• Array is a static data structure with a fixed size, while ArrayList is a dynamic data structure that can grow or shrink in size.

• Arrays can hold primitive data types and objects, while ArrayList can only hold objects.

• Arrays use square brackets [] for declaration, while ArrayList is a class in Java's collection framework.

• Arrays ...read more
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Q2. What and expalin java hibernate working
Ans. 
Java Hibernate is an ORM (Object-Relational Mapping) framework that simplifies database operations in Java applications.
• Hibernate maps Java classes to database tables and vice versa

• It provides automatic generation of SQL queries based on Java objects

• Hibernate handles the mapping of Java data types to SQL data types

• It supports caching mechanisms to improve performance

• Hibernate simplifies complex database operations like
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