Copyright © Cay S. Horstmann 2012. All Rights Reserved. The evolution of Java and C++ has slowed down considerably‚ and programmers who are eager to use more modern language features are looking elsewhere. Scala is an attractive choice; in fact‚ I think it is by far the most attractive choice for programmers who want to move beyond Java or C++. Scala has a concise syntax that is refreshing after the Java boilerplate. It runs on the Java virtual machine‚ providing access to a huge set of libraries and tools
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the recipient. Each such information requires a high level of security. To maintain such security and smooth completion of any communication it requires more time and human effort in manual systems. The entire process has been automated using JAVA technology to smoothen the flow of information in a highly secure environment across the network. We can send both the text based and voice based messages so we can do teleconferencing using this. While designing the system‚ care has been taken in
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leading technology. iPhone applications are developed in Objective C language while Android applications are developed in Java. Due to the current restrictions and differences between iPhone and Android platforms‚ applications that need to be deployed on both the platforms need to be developed twice. This involves double effort and time. Hence‚ there is a rise in demand‚ for Java to Objective C translator. This translator will allow an application to be developed only once but deploying it on both
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The Basics of Java Networking by Daniel Bloom JAVA NETWORKING TUTORIAL Imports Needed: Java.io.* Java.util.* Java.net.* Objects Used: InetAddress - creates an IP connection to a specified host Inet4Address - Creates an IPv4 connection to a specified host Inet6Address - Creates an IPv6 connection to a specified host SocketAddress - provides an immutable object used by sockets for binding‚ connecting‚ or as returned values. (Abstract class (used with InetAddress)) Socket - Opens
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following the rules for variable naming conventions. The previous statement is true for Java‚ Python and Visual Basic. Java’s rules and conventions for naming variables within its language must be abided by the programmer who wants to create a code effectively and efficiently. There are four (4) types of variables that are defined by the language: Instance‚ Class‚ Local and Parameters The variable names Java uses are case-sensitive. They may also be “…an unlimited-length sequence of Unicode letters
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Document Object Model Objectives To understand what the Document Object Model is To understand and be able to use the major DOM features To use JavaScript to manipulate an XML document To use Java to manipulate an XML document To become familiar with DOM-based parsers Introduction DOMs are to manipulate the contents of an XML document. XML documents‚ when parsed‚ are represented as a hierarchical tree structure in memory. This tree structure contains the document’s elements‚ attributes
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1.What is the purpose of the Runtime class? Latest answer: The java runtime system can be accessed by the Runtime class. The runtime information – memory availability‚ invoking the garbage collector is possible by using Runtime class............ Read answer 2.What is the difference between a static and a non-static inner class? Latest answer: Like static methods and static members are defined in a class‚ a class can also be static. To specify the static class‚ prefix the keyword ‘static’ before
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Q1) Explain what are applet and also explain the uses of Applets. A1: Applet is a type of Java program that runs on web browser. It can be a fully functional Java application because it has full Java API as its disposal. It is used to generate dynamic content. Works on client side‚ it will run inside a browser. They are used for webpage enhancement‚ adding small interactive components‚ can also be used to display large programs like of games or word processors. Java’s portability makes it unique
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------------------------------------------------- OBJECT ORIENTED PROGRAMMING Q.What is the difference between Constructor and Function or Method? Constructor will be automatically invoked when an object is created whereas method has to be called explicitly. Constructor needs to have the same name as that of the class whereas functions need not be the same. * There is no return type given in a constructor signature (header). The value is this object itself so there is no need to indicate a
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1 6 Arrays 2 Now go‚ write it before them in a table‚ and note it in a book. — Isaiah 30:8 To go beyond is as wrong as to fall short. — Confucius Begin at the beginning‚… and go on till you come to the end: then stop. — Lewis Carroll 3 OBJECTIVES In this chapter you will learn: What arrays are. To use arrays to store data in and retrieve data from lists and tables of values. To declare an array‚ initialize an array and refer to individual elements of an array.
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