Java deserialization example. Of course, Java object serialization is only half of the job. The other half is Java object deserializtion, which we accomplish with the FileInputStream and the ...

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 ...

The Java DataStax Driver comes with an object mapper that removes boilerplate of writing queries and lets you focus on your application objects. This example shows how to use mapper to build Data ...

In this Java tutorial, you’ve learned how to use class field initializers and class initialization blocks to initialize classes, and how to use constructors, object field initializers, and ...

This example, first creates the Java objects, then converts it to a JSON string and finally writes this to a file. The following figure shows the memory and time required by this approach. The large ...

The core of Java serialization lies in the ObjectOutputStream and ObjectInputStream classes. These streams provide methods to write and read objects. Here’s a simple example of serializing an ...

Object identity and equality are two different ways of comparing objects in Java. Identity means that two objects are the same instance, which can be checked with the == operator.

Creating a Java string. Below is one simple syntax for creating a Java string. String greeting = "Hello world!"; In this example, "Hello world!" is a string literal, which is a series of characters ...

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 ...