Discussions Populaires Dans la Communauté J2SE

Which class is superclass of every class in java?‎

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Can we execute a java program without main function?‎

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What is constructor? ‎

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Can you override private or static method in Java ?‎

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What is type-casting? and how can you achieve it?‎

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Whether Java is a Pure Object Oriented Programming language or Not ?‎

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689

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How do you ensure that N thread can access N resources without deadlock? ‎

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What is the issue compareTo() method in Java?public int compareTo(Object o){ Employee emp = (Employee) emp; return this.id - o.id;} id integer‎

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What will happen if we put a key object in a HashMap which is already there ?‎

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3

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How can you upload an image from the disk to your web page?‎

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1

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