Nelito System Interview Questions, Process, and Tips

OOPs is a programming paradigm based on the concept of objects. String is immutable in Java.

• OOPs is based on the concept of objects, which have properties and methods.

• Encapsulation, inheritance, and polymorphism are the three main pillars of OOPs.

• String is immutable in Java, meaning that once a string object is created, it cannot be modified.

An exception is an event that occurs during the execution of a program that disrupts the normal flow of instructions.

• Exceptions are used to handle errors and other exceptional events that occur during the execution of a program.

• In Java, exceptions are objects that are thrown by a method when an error or exceptional condition occurs.

• The try-catch block is used to handle exceptions in Java.

• Example: try { int x = 5/0; } c...read more