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...
Java Basic Interview Questions 1. Why is Java a platform independent language? Java language was developed in such a way that it does not depend on any hardware or software due to the fact that the compiler compiles the code and then converts it to platform-independent byte code which can...
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
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...
Java Basics Common Knowledge Points & Interview Questions Summary (Part 1), the latest version in 2022! Java basic common knowledge points & interview questions summary (in), the latest version of 2022 abnormal Java exception class hierarchy diagram overview: ...
A final class can no longer be subclassed. Mostly this is done for security reasons with basic classes like String and Integer. It also allows the compiler to make some optimizations, and makes thread safety a little easier to achieve. Methods may be declared final as well. This means they...
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,...
To have a better understanding ofcore Java interview questions for experiencedcandidates, one needs to check out courses offered by Sprintzeal in this regard. Conclusion JavaScript is a vast topic. The list ofJava basic interview questionscould be endless. But we hope you’ve found this comprehens...
of the ODBC driver manager and driver on all client machines. JDBC drivers are written in Java and JDBC code is automatically installable, secure, and portable on all platforms. f) JDBC API is a natural Java interface and is built on ODBC. JDBC retains some of the basic features of ODBC...
What are the basic interfaces of Java Collections Framework? Collection is the root of the collection hierarchy. A collection represents a group of objects known as its elements. The Java platform doesn’t provide any direct implementations of this interface. Set is a collection that cannot contain...