restxo.blogg.se

Q #6) What is meant by the Local variable and the Instance variable? If the user created a constructor with a parameter then he should create another constructor explicitly without a parameter.If a user doesn’t create a constructor implicitly a default constructor will be created.The constructor is a method which has the same name as the class name.When a new object is created in a program a constructor gets invoked corresponding to the class.It is used to convert the instructions into bytecodes.Īnswer: Eclipse and NetBeans are the IDE’s of JAVA.Īnswer: Constructor can be explained in detail with enlisted points: Q #3) How does Java enable high performance?Īnswer: Java uses Just In Time compiler to enable high performance. The user can create multiple threads by extending the thread class or by implementing the Runnable interface. JVM creates a thread which is called the main thread. Multi-threaded: A flow of execution is known as a Thread.JIT converts the bytecode into machine language and then JVM starts the execution. High Performance: JIT (Just In Time compiler) enables high performance in Java.Platform independent: A single program works on different platforms without any modification.There are a lot of applications, websites, and games that are developed using Java. Given below is a comprehensive list of the most important and commonly asked basic and advanced Java programming interview questions with detailed answers.Īnswer: Java is a high-level programming language and is platform-independent. Most Popular Java Interview Questions and Answers