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[1] What is a Local class in Java?

[2] I want to persist data of objects for later use. What's the best approach to do so?

[3] If an application has multiple classes in it, is it okay to have a main method in more than one cla

[4] Is there a way to increase the size of an array after its declaration?

[5] I have multiple constructors defined in a class. Is it possible to call a constructor from another c

[6] What happens if an exception is not handled in a program?

[7] How can we find the actual size of an object on the heap?

[8] How can an exception be thrown manually by a programmer?

[9] I want to control database connections in my program and want that only one thread should be able to

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