Teleflex Medical Interview Questions and Answers

Instance of keyword is used to compare an object to a specified class type.

• Instance of keyword returns true if the object is an instance of the specified class.

• It can be used to check if an object is of a specific class type before casting.

• Example: if(obj instanceof String) { // do something }

Exceptions are unexpected events that disrupt the normal flow of a program. Exception handling is the process of dealing with these events.

• Exceptions are objects that represent an abnormal condition or error in a program.

• Exception handling allows developers to gracefully handle errors and prevent the program from crashing.

• Java provides try-catch blocks for handling exceptions. The try block contains the code that may throw an exception, and the catch block handles the excepti...read more

A palindrome is a word, phrase, number, or other sequence of characters that reads the same forward and backward.

• Create a function to check if a given string is a palindrome.

• Remove all non-alphanumeric characters and convert the string to lowercase before checking.

• Compare characters from both ends of the string to determine if it is a palindrome.

Interface in Java is a reference type, similar to a class, that can contain only constants, method signatures, default methods, static methods, and nested types.

• Interfaces are used to define a contract for classes that implement them.

• Classes can implement multiple interfaces in Java.

• Interfaces cannot have instance fields, constructors, or non-static methods.

• Example: interface Shape { void draw(); }

• Example: class Circle implements Shape { public void draw() { // draw circle } ...read more

Abstraction is a concept in object-oriented programming where only relevant data is shown to the user while hiding unnecessary details.

• Abstraction helps in simplifying complex systems by only showing essential features.

• It allows for creating abstract classes and interfaces in Java.

• Example: In a car, the driver only needs to know how to drive it without understanding the internal workings of the engine.