What are the differences between the constructors and methods?

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my method "abc" return array of interface "xyz" and "pqr" is abstract class implements abc and class "jkl" extends pqr My problem 1) when i call abc it retrun array xyz how can i do this hint xyz refer_xyz = new jkl(); but i can't create array. 2)I want to access method of jkl using reference of xyz??

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How applets will communicate with each other?

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what is stringtolennizer with example?

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What is variable length arguments in java?

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What does \ mean in regex?

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What is means by DLL file means ? What is the use of DLL file? What are the contents of DLL file?

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What is an exception?

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Explain where variables are created in memory?

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Can you pass functions in java?

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transaction attributes ?

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Explain about GridBag Layout?

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