1. What is Python? What are the benefits of using Python? Python is a programming language with objects, modules, threads, exceptions and automatic memory management. The benefits of pythons are that it is simple and easy, portable, extensible, build-in data structure and it is an open source. 2. What is PEP 8? PEP 8 is
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1. What is a JSP Page ? A Java Server Page (JSP) is a text document that contains two types of text: static data and JSP elements. Static data can be expressed in any text-based format, such as HTML or XML. JSP is a technology that mixes static content with dynamically generated content. 2. How
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1. Explain the architechure of a Servlet. The core abstraction that must be implemented by all servlets is the javax.servlet.Servlet interface. Each servlet must implement it either directly or indirectly, either by extending javax.servlet.GenericServlet or javax.servlet.http.HTTPServlet. Finally, each servlet is able to serve multiple requests in parallel using multithreading. 2. What is a Servlet ?
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1. What is RMI ? The Java Remote Method Invocation (Java RMI) is a Java API that performs the object-oriented equivalent of remote procedure calls (RPC), with support for direct transfer of serialized Java classes and distributed garbage collection. Remote Method Invocation (RMI) can also be seen as the process of activating a method on
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1. What is JDBC ? JDBC is an abstraction layer that allows users to choose between databases. JDBC enables developers to write database applications in Java, without having to concern themselves with the underlying details of a particular database. 2. Explain the role of Driver in JDBC. The JDBC Driver provides vendor-specific implementations of the
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1. What is a layout manager ? A layout manager is the used to organize the components in a container. 2. What is the difference between a Choice and a List ? A Choice is displayed in a compact form that must be pulled down, in order for a user to be able to see
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1. What is an Applet ? A java applet is program that can be included in a HTML page and be executed in a java enabled client browser. Applets are used for creating dynamic and interactive web applications. 2. Explain the life cycle of an Applet. An applet may undergo the following states: Init: An
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1. What are the two types of Exceptions in Java ? Which are the differences between them ? Java has two types of exceptions: checked exceptions and unchecked exceptions. Unchecked exceptions do not need to be declared in a method or a constructor’s throws clause, if they can be thrown by the execution of the
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1. What is the purpose of garbage collection in Java, and when is it used ? The purpose of garbage collection is to identify and discard those objects that are no longer needed by the application, in order for the resources to be reclaimed and reused. 2. What does System.gc() and Runtime.gc() methods do ?
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1. What is JVM ? Why is Java called the Platform Independent Programming Language? A Java virtual machine (JVM) is a process virtual machine that can execute Java bytecode. Each Java source file is compiled into a bytecode file, which is executed by the JVM. Java was designed to allow application programs to be built
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