Definition of Ethereum Blockchain Ethereum is a decentralized, open-source blockchain platform that supports smart contracts — self-executing contracts written in code. It was proposed by Vitalik Buterin in 2013 and…
Discuss the following with respect to JDBC i) Metadata ii) ResultSet Metadata iii) Data Types iv) Exceptions Answer:- JDBC Concepts Overview Java Database Connectivity (JDBC) is a Java API that…
Describe all the interface and classes present in the jakarta.servlet Package Answer:- jakarta.servlet Package – Overview The jakarta.servlet package is part of the Jakarta EE (formerly Java EE) platform. It…
Define JSP and explain the following: i) Tags ii) Variables iii) Objects Answer:- What is JSP? JSP (JavaServer Pages) is a server-side technology used to create dynamic web content. It…
Explain the following swing components with an example program: i)JLabel ii)JTextField iii) JScrollPane iv) JTable Answer:- Here’s a clear explanation of each Swing component you listed, along with a simple…
What is Java Swing? Discuss the evolution of Java Swing and explain its key features. Answer:- What is Java Swing? Java Swing is a GUI (Graphical User Interface) toolkit in…
Elaborate the concept of painting in Java Swing. Illustrate your explanation with a suitable example program Answer:- Painting in Java Swing Painting in Java Swing refers to the process of…
Describe the MVC Connection. How is this design pattern implemented in Java Swing applications? Answer:- MVC Connection in Java Swing MVC stands for Model-View-Controller. It is a design pattern used…
Explain the usage of indexOf() and lastIndexOf() methods with one example each Answer:- indexOf() and lastIndexOf() Methods in Java Both methods are used to find the position (index) of characters…
Overloaded Constructors of the String Class in Java The String class provides several overloaded constructors to create string objects in different ways. Each constructor behaves differently based on the type…
