07 August, 2014

Performance - Java Programming

Performance - Could be refactored into a named static inner class
Performance - Could be refactored into a static inner class
Performance - Explicit garbage collection; extremely dubious except in benchmarking code
Performance - Huge string constants is duplicated across multiple class files
Performance - Inefficient use of keySet iterator instead of entrySet iterator
Performance - Maps and sets of URLs can be performance hogs
Performance - Method allocates a boxed primitive just to call toString
Performance - Method allocates an object, only to get the class object
Performance - Method calls static Math class method on a constant value
Performance - Method concatenates strings using + in a loop
Performance - Method invokes inefficient Boolean constructor; use Boolean.valueOf(...) instead
Performance - Method invokes inefficient floating-point Number constructor; use static valueOf instead
Performance - Method invokes inefficient new String() constructor
Performance - Method invokes inefficient new String(String) constructor
Performance - Method invokes inefficient Number constructor; use static valueOf instead
Performance - Method invokes toString() method on a String
Performance - Method uses toArray() with zero-length array argument
Performance - Primitive value is boxed and then immediately unboxed
Performance - Primitive value is boxed then unboxed to perform primitive coercion
Performance - Private method is never called
Performance - Should be a static inner class
Performance - The equals and hashCode methods of URL are blocking
Performance - Unread field
Performance - Unread field: should this field be static?
Performance - Unused field
Performance - Use the nextInt method of Random rather than nextDouble to generate a random integer

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