Palladium Staffing Solutions Interview Questions, Process, and Tips

OOPS concepts are the principles of Object-Oriented Programming that help in designing and implementing software systems.

• Abstraction: Hiding implementation details and showing only necessary information.

• Encapsulation: Binding data and methods together to protect data from outside interference.

• Inheritance: Creating new classes from existing ones to reuse code and add new features.

• Polymorphism: Using a single interface t...read more

Collection is a framework that provides an architecture to store and manipulate a group of objects.

• Collection is an interface in Java that extends Iterable interface.

• It is used to store a group of objects.

• Collections can be of two types: List and Set.

• List is an ordered collection that allows duplicates while Set is an unordered collection that does not allow duplicates.

• Examples of collections include ArrayList, LinkedL

JDBC driver is a software component that enables Java applications to interact with databases.

• JDBC driver acts as a mediator between Java application and database.

• There are four types of JDBC drivers: Type 1, Type 2, Type 3, and Type 4.

• Type 1 driver uses ODBC to connect to the database.

• Type 2 driver uses native API to connect to the database.

• Type 3 driver uses a middle-tier server to connect to the database.

• Type 4 driv...read more

Servlet lifecycle involves initialization, service, and destruction phases.

• Servlet is initialized by calling init() method

• Service method is called for each request

• Servlet is destroyed by calling destroy() method

• Container manages the lifecycle of servlet

• ServletConfig and ServletContext objects are available during initialization