Can a class extend more than one class?
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Are arrays primitive data types?
what is request dispatcher and how does it work?
How to make object serializable in java?
Inorder to specify a container?s layout, which method is used?
Why vector class is used?
Explain the difference between collection api and stream api in java8?
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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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