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Why should we use java?
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java does not support multiple inheritance because different classes may have different variable with same name that may be contradicted and can cause confusions resulting in errors.Java supports it through the interfaces.A class can extend one class and can implement more than one interfaces also.those interfaces may have variables with same names.Wont they create confusion?
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static functions can call only other static functions and static variables then how does public static void main(String args[]) function is successful to call non-static functions and also non static variables?
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we have been taught that whenever an object is created it always invokes a constructor, if not defined in the class then the compiler implicitly invokes it. why??? if there is a parameterized constructor in the class then the compiler does not provide the default constructor why?????
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can there be an abstact class with no abstact methods in it?
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What is JDBC API in JAVA?
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Why the multiple inheritance is not possible in java and if possible HOW??
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Why we use interface in java?
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Give a sample program in Java?
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Does java support Line by Line execution?
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What are the main features of java and c++?
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I have one java action form that i setAttribut() and on jsp get reslutset as getAttribute() and print on jsp. again i want this rsult on next jsp threw getAttribute(), but on this last page i cannot get result. so how to do this. i have tried this to setAttribute() and again get but it gets only reference on last page so please give me solution.
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How many modifiers are there in java?
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What is the difference between interface and abstract class ?
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How could create list which can contain super class and all of its sub class?
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What is the difference between “overloading” and “overriding”?
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What is Garbage Collector in java?
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How to create .xsl by using java?
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