XyzWs Java FAQ

XyzWs Java FAQ

XyzWs Java FAQ

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	How to access inner class in an interface?

	Why it doesn't compile when an inner class has a method of the same name (but different signature) as that of its enclosing class?

	How to import classes that are in the 'default' package?

	Is a class subclass of itself?

	What does the "final" modifier mean on a method parameter?

	What are braces in Java for?

	Why equals() can be true even if it's comparing two different objects?

	What are the differences between System.gc() and Runtime.gc()?

	How to use keyword 'this' in an inner class?

	Why a protected member of a superclass can't be accessed from a subclass by using a superclass' reference?

	Does JVM throw Exceptions for Floating-point arithmetic operations?

	Must all final variables be compile time constants?

	Why it is not required to declare the Exception declared in the superclass' method when overriding it?

	Can I use variables in case clauses in the switch statement?

	When should I use volatile modifier?

	Can an array of primitive types be casted to an array of object reference?

	Why Interface is useful?

	When to use abstract classes?

	How differently does Java handle checked and unchecked exceptions?

	How many ways can I access static members in a class?

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