Spring Dependency Injection ● A kind of Inversion of Control (IoC) ● “Hollywood Principle” – Don’t call me, I’ll call you ● “Container” resolves (injects) dependencies of components by setting implementation object (push) ● As opposed to component instantiating or Service Locator pattern where component locates implementation (pull) ● Martin Fowler calls it Dependency Injection. Benefits of… Read More Spring Dependency Injection Basics
What is Spring Framework? ● Light-weight yet comprehensive framework for building Java SE and Java EE applications. Key Features – DI ● JavaBeans-based configuration management, applying Inversion-of-Control principles, specifically using the Dependency Injection (DI) technique – This aims to eliminate manual wiring of components ● A core bean factory, which is usable… Read More Spring Basics
Console Class – used for reading the data from the console and writing the data on the console. – obtain a reference to the console using the System.console() method. // get the System console object Console console = System.console(); // read a line and print it through printf console.printf(console.readLine()); String userName = null; char[] password… Read More Java Input and Output
String Class Definition: – Represents combinations of character literals – Using Java, strings can be represented using: ● Array of characters ● The String class – Note: A String object is different from an array of characters! … Read More String Processing
Suresh Sekar's Architecture Introspection 