Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

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 ...

Java provides a way for the programmer to exercise control over memory management by marking certain objects as expendable via reference objects. Should an application’s memory requirements ...

Loitering Objects and Java Framework Design By Leonard Slipp February 5, 2001 ONE OF THE key objectives early in the design of Java was to create an environment that eliminated the memory management ...

Any object representing a mutable data source in Java exposes methods for reading and writing its data as a stream. Java.io is the main package for most stream-oriented I/O classes.

When the Java language was created, Sun engineers decided that developers should not be responsible for managing the memory used by the objects they create. Instead, a garbage collection routine would ...

Persistence is one of the greatest challenges for building applications. There are many options for building persistence layers. Data Access Objects (DAO) is a popular design pattern for building the ...

Java’s inbuilt concept of serialization, does all this for you, for the very objects created by your application that are still in memory.