Java Concept Of The Day Quick Reference Sheets : SQL Cheat Sheet Java Collections Cheat Sheet Java Exception Handling Cheat Sheet Java Threads Cheat Sheet Java Strings Cheat Sheet Java Array Cheat Sheet Java 8 Interview Coding Questions Java OOP Cheat Sheet ...
Multithreading is an important concept that helps to solve present-day coding and design problems. Hence, you can expect Java Multithreading interview questions in systems design interviews at FAANG+ companies. Get Ready For Your Upcoming Technical Interview If you’re getting ready for your upcoming...
The publicsetName()andgetName()methods are the access points of the instance variables. 2. Inheritance Inheritance allows a class to be a subclass of a superclass, and thereby inheritpublic and protectedvariables and methodsof the superclass. Inheritance is a key concept that underliespol...
Static methods are associated with the class, not any particular object. The concept of runtime polymorphism applies to instance methods at runtime. Since static methods do not rely on objects, they cannot be overridden. 93) Can we override private methods? No, private methods cannot be overrid...
Web technology makes it easy and quick to produce dynamic web content. Understanding the concept of establishing communication between many computer systems via markup languages requires a greater understanding of Web technologies. It allows users to communicate with the host for information, similar to...
components has to be done on AWT thread, and Swing provides synchronous and asynchronous callback methods to schedule such updates. You can also read my article to learn more aboutswing and thread-safetyto better answer this question. Even next two questions are also related t...
In this example, the ImmutablePerson class showcases the concept of immutability. The final keyword is used to declare the instance variables, ensuring that once an object is created, its state cannot be changed. Benefits of Using the Final Keyword in Java Security: By marking certain methods ...
2. Concurrency Questions 2.1.What is Thread Safety? Definingthread safetyis surprisingly tricky. At the heart of any reasonable definition of thread-safety is the concept of correctness. So, before understanding the thread-safety, we should first understand this “correctness”. ...
4) What is lazy and early loading of Singleton and how will you implement it? This is another great Singleton interview question in terms of understanding of concept of loading and cost associated with class loading in Java. Many of which I have interviewed not really familiar with this but ...
//howtodoinjava.com/2013/03/04/core-java-interview-questions-series-part-2/ http://stackoverflow.com/questions/17840397/concept-behind-putting-wait-notify-methods-in-object-class 9. Can we override wait() or notify() methods? In Object.java, methods getClass(), notify(), notifyAll() and...