For example, java.awt.Button is a heavy weight component, when it is running on the Java platform for Unix platform, it maps to a real Motif button.102. What's the difference between constructors and other methods?Constructors must have the same name as the class and can not return a ...
The compiler will complain that Object is not a functional interface, though the real problem is that the compiler can’t quite figure out which functional interface this lambda should implement: Runnable or something else? We can help the compiler with, as always, a cast, as shown in ...
These are accessibility modifiers. Private is the most restrictive, while public is the least restrictive. There is no real difference between protected and the default type (also known as package protected) within the context of the same package, However the protected keyword allows visibility to ...
This information is used at runtime to throw `ArrayStoreException` if elements type doesn't match to the defined type. Since generics type information gets erased at compile time by Type Erasure, the array store check would have been passed where it should have failed. Let's understand this w...
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...
8. Why wait(), notify() and notifyAll() are defined in Object class? //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 ...
Java 8 StringJoiner, String.join() And Collectors.joining() Java 8 Sort HashMap By Keys Java 8 Sort HashMap By Values Java 8 Merge Two Maps With Same Keys Solving Real Time Queries Using Java 8 Features -Employee Management System 60+ Java 8 Interview Questions Tags AI Algorithms Artificial...
Interview questions Asked 90% 01.Ice breakerTell us about yourself? 02.Ice Breaker8 Java real life scenariosinterview Q&As 03.Design Patterns:5design patternsinterview Q&As 04.50+Core JavaInterview Questions & Answers 05.6 Javamodifiersevery interviewer likes to quiz you on ...
19. Give a simplest way to find out the time a method takes for execution without using any profiling tool? this questions is suggested by@Mohit Read the system time just before the method is invoked and immediately after method returns. Take the time difference, which will give you the tim...
Java 8 Interview Questions Java Projects and Certifications Putting your knowledge into practical projects in Java is very important. Good Projects and Certifications will prove your expertise, like Oracle Certified Java Programmer, and make you more attractive to employers, thus giving a boost to your...