Although Java lacks a true sizeof () equivalent, the Instrumentation interface introduced with J2SE5 can be used to get an estimate of the size of a particular object via its getObjectSize (Object ...

After compiling the source code (javac City.java) and running the application (java City), you would observe null for name and 0 for population. The new operator zeroes an object’s object ...

The Java Function interface is quite simple. It takes a single Java object as an argument, and returns a single Java object when the method concludes. Any method you can conjure up takes an object and ...

Give variables and methods logical names Another best practice on how to write clean code in Java is to assign logical, human-readable names to methods, variables, functions and other objects within ...

The 30th anniversary of Java, being celebrated this year, offers a perfect opportunity to reflect on the remarkable changes the ecosystem has undergone.