Error:Erroris an error that cannot be handled by the program,We can't capture it bycatchCapture viacatchis not recommended. For example, Java virtual machine running error (Virtual MachineError), virtual machine memory is not enough error (OutOfMemoryError), class definition error (NoClassDefFound...
Java doesn’t use pointers because they are unsafe and increases the complexity of the program. Since, Java is known for its simplicity of code, adding the concept of pointers will be contradicting. Moreover, since JVM is responsible for implicit memoryallocation, thus in order to avoid direct...
It is my great honor to be here for your interview. My name is fangjian, I’m 24 years old. And I come from An Hui province, An Qing is my hometown. My undergraduate program will be accomplished in Huangshan universty which is located in Zhe jiang province . Now I am trying my be...
5 STARS - This course is perfect for those people that have been for some time without using some features of Java and need to refresh those knowledge 5 STARS - The best Java interview guide on Udemy 5 STARS - Awesome, this is how the videos should be. First, I was thinking couple of...
To have a better understanding of core Java interview questions for experienced candidates, one needs to check out courses offered by Sprintzeal in this regard. Conclusion JavaScript is a vast topic. The list of Java basic interview questions could be endless. But we hope you’ve found this co...
Basic Java Interview Questions Q1. Explain JDK, JRE and JVM? JDK vs JRE vs JVM JDK JRE JVM It stands for Java Development Kit. It stands for Java Runtime Environment. It stands for Java Virtual Machine. It is the tool necessary to compile, document and package Java programs. JRE refers...
It is one of the java interview questions for freshers. Of course not 100% freshers, but this question tests understanding of basic design principles, and the ability to apply them. In particular, adhering to the “open to extension, closed to modification” principle helps to write decoupled,...
such as MySQL and Oracle. This article has a collection of 40+ interview questions related to the JDBC API. They cover areas from basic Connection to DataSource to Connection Pooling. It will help you in interviews for questions related to JDBC API and how to use it. If you are new to...
* Cache to support the object identity semantics of autoboxing for values between * -128 and 127 (inclusive) as required by JLS. * * The cache is initialized on first usage. The size of the cache * may be controlled by the {@code-XX:AutoBoxCacheMax=<size>} option. ...
Garbage collection is one of the most important feature of Java. Garbage collection is also called automatic memory management as JVM automatically removes the unused variables/objects (value is null) from the memory. User program cann't directly free the object from memory, instead it is the jo...