If you’re interviewing for a Java programming role, then your coding skills will probably be tested. Whether you’re a beginner in Java or an expert programmer, this article provides some common Java interview questions and answers to help you prepare. 1. How do you reverse a string in Ja...
Serialization is the process of writing the state of an object to a byte stream. Deserialization is the process of restoring these objects.97. What are use cases?It is part of the analysis of a program and describes a situation that a program might encounter and what behavior the program ...
What are Collection related features in Java 8? Java 8 has brought major changes in the Collection API. Some of the changes are: Java Stream API for collection classes for supporting sequential as well as parallel processing Iterable interface is extended with forEach() default method that we c...
When we call the sleep() method, it pauses the execution of the current thread for the given time and gives priority to another thread(if available). Moreover, when the waiting time completed then again previous thread changes its state from waiting to runnable and comes in running state, a...
Answer: Converting a file into a byte stream is known as Serialization. The objects in the file are converted to bytes for security purposes. For this, we need to implement a java.io.Serializable interface. It has no method to define. ...
import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; public class CustomExceptionExample { public static void main(String[] args) throws MyException { try { processFile("file.txt"); } catch (MyException e) { processError...
8 Key Java Interview Questions for Entry-Level Java Junior Developers Junior Java developers are a great way to strengthen your IT team. Although they are still not experts in the field, they have valuable and fresh knowledge. Talentedentry-level developersare aware of all the new things happeni...
Before coding the solution, interview candidates are expected to ask some follow-up questions. In particular:Should a run be encoded even if it makes the resulting string longer? Should a run be encoded even if it doesn’t make the resulting string shorter? (This can be answered from the ...
Java Interview Preparation Java interview preparation is very important for anyone looking to get a high-paying job as a Java developer. Practicing common interview questions and solving coding challenges help in enhancing problem-solving skills and performance during technical interviews. ...
Stream.forEach() 31. What is a Fail-fast Iterator? Fail-fast Iteratorsfail as soon as they detect that structure of the Collection has been changedsince iteration has begun. Structural changes mean adding, removing or updating itemsfrom the Collection while one thread is Iterating over that Co...