Related Topics JAVA Programing Question 14 How do you create a dialog box in a Swing application? Answer In Swing, you can create a dialog box by using the JOptionPane class. The JOptionPane provides a set of convenience methods that allow you to create and customize dialog boxes with different types of messages, icons, and […]
Related Topics JAVA Programing Question 8 What is the difference between a JApplet and a JFrame? Answer JApplet and JFrame are both top-level containers in Java Swing, but there are several differences between them. Launching: A JFrame is a standalone application that runs outside of a web browser, while a JApplet is designed to be
Related Topics JAVA Programing Question 1 What is the difference between AWT and Swing in Java? Answer AWT (Abstract Window Toolkit) and Swing are both GUI (Graphical User Interface) toolkits for Java, but there are some key differences between them: Architecture: AWT is a native toolkit, which means it relies on the underlying operating system
Related Topics JAVA Programing Question 39 What is the use of the ELResolver interface in Java Beans? Answer The ELResolver interface is a part of the Expression Language (EL) API in Java Beans. It provides a way to resolve variables and properties in EL expressions. The ELResolver interface defines five methods: getValue(ELContext, Object, Object): This
Related Topics JAVA Programing Question 33 What is the use of Entity beans in Java Beans? Answer In Java Beans, an entity bean is a type of enterprise bean that represents a persistent object that is stored in a database. Entity beans are used to map Java objects to database tables, and provide a mechanism
Related Topics JAVA Programing Question 26 What are the considerations for making a Java Bean Remote? Answer To make a Java Bean remote, you need to consider the following: Remote interface: A remote interface defines the methods that can be invoked on the remote Bean. You need to create a remote interface that extends the
Related Topics JAVA Programing Question 19 What is the use of the BeanDescriptor class in Java Beans? Answer In Java Beans, the BeanDescriptor class is used to provide general information about a Bean, such as its display name, short description, and customizer class. It is part of the metadata provided by the BeanInfo class, which
Related Topics JAVA Programing Question 14 What is the role of BeanContext interface in Java Beans? Answer The BeanContext interface in Java Beans provides a framework for managing a group of Java Beans in a hierarchical structure. The BeanContext interface defines a set of methods that enable a BeanContext object to: Manage a group of
Related Topics JAVA Programing Question 8 What is the difference between Serializable and Externalizable interface in Java Beans? Answer Both the Serializable and Externalizable interfaces are used in Java Beans to enable the serialization of an object, but they differ in how the serialization process is implemented. Serializable Interface: The Serializable interface is a marker
Related Topics JAVA Programing Question 1 What is a Java Bean? Answer A Java Bean is a plain-old Java object (POJO) that conforms to a set of conventions for properties, methods, and events. It is a reusable software component that encapsulates data and behavior and can be easily manipulated by software tools. The Java Bean
