Components of GWT

Components in GWT can be breakdown into 4 parts:

1. Java to JavaScript Compiler

This creates a JavaScript equivalent for the Java programming language. It works by analyzing the Java source code, followed by generating JavaScript files. During the compilation process, the GWT compiler optimizes the generated code for performance, removes unused code, and minimizes the size of the output files to reduce the download time.

2. GWT Development Mode

This enables the execution of GWT apps in development mode (the program runs in the JVM as Java rather than compiling to JavaScript). Before version 2.0, GWT-hosted mode had a dedicated “hosted browser” to help you debug your GWT code. In version 2.0, a standard browser is used to see the web page that is being debugged. For several well-known browsers, a native-code plugin called the Google Web Toolkit Developer Plugin supports development mode.

3. JRE Emulation Library

JavaScript implementations of the most frequently employed classes from the Java standard class library, comprising the majority of the classes found in java.lang package and a portion of the classes in java.util package.

4. GWT Web UI class library

It is a set of pre-built widgets and components that are used to create widgets such as history management, UI components, etc. It includes components such as labels, buttons, text boxes, tables, and menus. Since these components are built on top of the GWT framework, they are cross-compatible and work seamlessly across all browsers.

What is Google Web Toolkit(GWT)?

Google Web Toolkit (GWT) is an open-source web application framework developed by Google. It is a Java-based framework that allows developers to write web applications in Java and compile the code to highly optimized JavaScript, HTML, and CSS. The framework was first released in 2006 and has since become a popular choice for developers who want to build large, scalable, and maintainable web applications. Additionally, GWT offers a comprehensive selection of user interface elements and makes it simple for developers to build complex and sophisticated web applications with ease.