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![]() Related Questions I need to build a 4-Tier System, where I have a presentation-Tier, a Business-Tier, a Data-Tier and a 4th tier compose by remote machines. What is the best JAVA solution, between all the JSP, Servlet's, EJB, etc. ? Read Answers (2) | Asked by : João Neto Latest Answer : OBJECTS SIT ON HEAPPRIMITIVES (LIKE INT, DOUBLE ETC) SIT ON STACKSTACK IS FASTER THAN HEAP.OBJECTS ARE PASSED BY REFERENCE. PRIMITIVES ARE PASSED BY VALUE.OBJECTS ARE GARBAGE COLLECTED. PRIMITIVES ARE CLEARED FROM THE STACK BY MOVING THE STACK ... Suppose there are 2500 records to be handled? How Data Access Object (DAO) class will handle it? Latest Answer : DAO is one of design patterns. The Data Access Object (or DAO) pattern: 1. Separates a data resource's client interface from its data access mechanisms, 2. adapts a specific data resource's access API to a generic client interface. The ... Read Answers (2) | Asked by : Anoop What is XML and when it will be used in Realtime project? can any one give me example of transfering the data with xml with java? Latest Answer : XML is used like java where java is platform independent where as xml is data independent.xml is used in webservices where different platform services can transfor data between them.examplein distributed technologies we comunicate between two java ... Explain how will you pass data from one Server(Tomcat) to another Server (WebLogic)? Latest Answer : One way of transferring data between JVMs across the network would be to use Tangosol's Coherence product (www. tangosol . com/coherence . jsp) ...
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