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