SCJP: Random Stuffs #Java Short Notes #SCJP

An enum may NOT be declared in a method
An enum can be imported
If the JVM has a choice, it will select a method without varargs before selecting a method with varargs
When enums are equal, both .equals and == always return true
The headMap() method returns the portion of the map whose keys are less than the key sent to it
The asList() method of Arrays creates a fixed-size list that is backed by the array, so no additions are possible.
A static initialization block is a normal block of code enclosed in braces, { }, and preceded by the static keyword. Used to initialize class variables
All enums implicitly extend java.lang.Enum.
A class can extend only one other class, an interface can extend any number of interfaces
An interface might also contain constant definitions.
An abstract class that implements an interface may not implement all interface methods

From: http://sitestree.com/?p=4872
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Post Data:2012-12-07 07:48:57

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