Java example for Files.createDirectories and Files.createDirectory methods to make folders.

Java files copy examples using java.nio.Files class copy methods for better performance.

Example of browser’s device type detection using DeviceResolver & LiteDeviceResolver classes of spring device detection library in Servlet application.

Detecting device type in spring mvc application using spring library. Full details of spring-mvc configuration using classes DeviceWebArgumentResolver, DeviceResolverHandlerInterceptor, DeviceResolverRequestFilter.

Reason of Spring Boot App Unable to start Spring EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean.

Know about concurrency, processes, threads in Java. Multi-Threading is main feature of Java Platform.

Know every thing about immutable objects. Strategy for creating mutable objects. Why immutable objects are Important.

In general we can not access private field and method via object in Java. But using reflection we can do in normal standalone application. But In applications like applet or android application it requires special permission to access private fields and methods. Table of content Invoking private methods Accessing private fields Here is  sample private…

Example of Java Serialization and De-Serialization using Serializable interface and ObjectOutputStream class. Complete serialization and deserialization information when you do via Serializable interface.

Java example to generate public/private key pairs using KeyPairGenerator class.