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why java does not support inheritance of multiple superclasses? what is achieved by inheritance? why there is no main method in servlets/jsps?
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How can we use hashset in collection interface?
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What is difference between java.lang .Class and java.lang.ClassLoader? What is the hierarchy of ClassLoader
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What is difference between array & arraylist?
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if interface & abstract class have same methods & abstract class also not contain any implementation for those methods which one you prefer ?
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How can you load DLL files when your java class is loading first time ?
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What is difference between string and stringtokenizer?
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We know that Object class is super class of every class & a class extends only one class. so how is it possible to a class to extend other than Object class?
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What is JVM Heap Size? How does it affect the performance of the Application?
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How many JVM could be run on an operating system. if only one then what is the logical reason.
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What are differences between Enumeration, ArrayList, Hashtable and Collections and Collection?
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Which class is the super class for all classes in java.lang package?
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Why the container does not support multiple layout managers
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How to use JNI in java? and what are Struts and jini?and how to apply native code in java?
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Can wehave run() method directly without start() method in threads?
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When programmer using the vector and arrylist? and when ur using linkedlist and hashmap and hashtable?
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WHEN UR USING ARRAYLIST AND LIKEDLIST AND VECTOR AND HASHMAP AND HASHTABLE?
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if two overloaded methods are- Test(Object xyz) and test(Customer cust)[Assume Customer is a class with member name of type String].Now if we call test(null), which method will be called? why?
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How single threaded model works after implementation in class, basically architecture point of view.
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Is there any difference between Execution Engine and the JIT in java?
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