Explain the difference between association, aggregation and inheritance relationships.

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What class is used to implement a Throwable array?

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Can you run the product development on all operating systems ?

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Which method is used to find that the object is exited or not?

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How many bits is a string?

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Hi Friends, I am beginner in java. what i know about synchonized keyword is,If more that one 1 thread tries to access a particular resource we can lock the method using synchronized keyword. Then after that how the lock is released and how next thread access that.Please explain with example.

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Is string serializable in java?

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explain the collection in java

1 Answers   WDC,

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Can we serialize arraylist in java?

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What is meant by Servelet? What are the parameters of service method?

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Is object a data type?

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What is the difference between static (class) method and instance method?

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