The Commonly Asked Interview Questions in Java are categorized topics-wise as follows:- Fundamental Interview Questions in Java Ques. : What is Java? Ques. : List important features of the Java 12 release. Ques. : List various versions of Java. Ques. : What is the difference between Path and Classpath variables in Java? Ques. Read more…
Definition of Polymorphism in Java Polymorphism in Java is one of the important OOP features by which we can perform a single action in different ways. Simply, polymorphism is the ability of an object to take many forms in the same situation. In Java, the ability of a reference variable to Read more…
Reference Books and Websites in Java Some common Reference Books and Websites in Java are given below as follows : – Reference Books Slno. Name of Books Author Publications 01. Let us Java Yashwant kanetkar 02. Programming with Java E.Balgurusamy 03. Core Java: An Integrated Approach R. Nageswara Rao 04. Read more…
Java Terminology includes the following common terms – API(Application Program Interface) An application programming interface (API), in the context of Java, is a collection of pre-written packages, classes, and interfaces with their respective methods, fields, and constructors. An application program interface (API) is a set of routines, protocols, and tools for Read more…
List of Difference Between in Java Difference between Java Application and Applets Slno. Java Application Applets 01. Java Applications are stand-alone programs i.e. this program can run on a single system at a time normally. Applets programs are designed and embedded in a HTML web Read more…
Introduction of JDBC Connectivity JDBC(Java Database Connectivity)is part of the Java Standard Edition platform, from Oracle Corporation. The stable release of JDBC is JDBC 4.3 / September 21, 2017 The current developer of JDBC is Oracle Corporation. The JDBC API was modeled after the ODBC API. JDBC is a core part of the Read more…
File handling in Java refers to the process of working or performing different types of operations with files and directories using Java programming language. File handling operations allow for the creation, reading, writing, deleting, modifying, renaming, copying, and performing other file-related various operations on files and directories. To perform file-handling Read more…
Introduction of Input and Output in Java Java has provided several APIs (also called Java Input and Output(I/O)) to read and write files since its initial releases. With subsequent releases, Java I/O has been improved, simplified, and enhanced to support new features. I/O Streams There are two types of Input Read more…
Introduction of Exception Handling in Java An exception handling in Java is a condition that causes a problem, which stops program execution suddenly and abnormally, from continuation from the point of occurrence of it. Definition of Exception Handling in Java Exceptions are events and runtime hidden errors that arise suddenly and Read more…
Introduction of Multi-threading in Java Multi-threading in Java is also sometimes called Thread-based Multitasking. Definition Multi-threading is a process of executing more than one thread concurrently/simultaneously of the same process to complete it effectively at the micro level. Features/Characteristics of Thread A Java thread is a lightweight sub-process or smallest Read more…