The @Transactional annotation in Spring indicates that a method or class should be executed within a transactional context. It manages the transaction boundaries for a method or class, ensuring that all operations within it are either committed or rolled back as a unit. This annotation is useful ...
The wait() method is provided by the Object class in Java. This method is used for inter-thread communication in Java. The java.lang.Object.wait() is used to pause the current thread, and wait until another thread does not call the notify() or notifyAll() method. Its syntax is given...
JSP is an integral part of Java EE. If you are giving an interview for a web developer, then having good knowledge of JSP is very important. This post contains a list of 35 JSP interview questions with answers. Please make sure to bookmark it because I will be kept on adding more to...
publicfinalclassStringimplementsjava.io.Serializable,Comparable<String>,CharSequence{/** The value is used for character storage. */privatefinalcharvalue[];/** Cache the hash code for the string */privateinthash;// Default to 0/** use serialVersionUID from JDK 1.0.2 for interoperability */pri...
7. What are the important features of the Java 8 release? Java 8 has been released in March 2014, so it’s one of the hot topics in java interview questions. If you answer this question clearly, it will show that you like to keep yourself up-to-date with the latest technologies. ...
If you want to learn Java online, you can sign up for the course on Sprintzeal’s E-learning platform and take up their Java online course to get certified. To have a better understanding of core Java interview questions for experienced candidates, one needs to check out courses offered by...
7How to define an Interface? 7In Java Interface defines the methods but does not implement them. Interface can include constants. A class that implements the interfaces is bound to implement all the methods defined in Interface. Emaple of Interface: ...
In this article, we discuss interview questions for a Java developer and offer sample answers to help you create effective responses in your interview. Related jobs on Indeed Part-time jobs Full-time jobs Remote jobs Urgently hiring jobs View more jobs on Indeed...
Java Multithreading Interview Questions 1) What is multithreading? Multithreading is a process of executing multiple threads simultaneously. Its main advantage is: Threads share the same address space. Thread is lightweight. Cost of communication between process is low....
Java提供了volatile关键字来保证可见性。 当一个共享变量被volatile修饰时,它会保证修改的值会立即被更新到主存,当有其他线程需要读取时,它会去内存中读取新值。 而普通的共享变量不能保证可见性,因为普通共享变量被修改之后,什么时候被写入主存是不确定的,当其他线程去读取时,此时内存中可能还是原来的旧值,因此无法...