There are many IDEs and editors that make java programming an absolute breeze and choosing one can be a time consuming task. You can open a basic text editor like notepad and start writing basic java programs or go ahead with a feature rich, code centric, integrated development environment (IDE) like NetBeans, Eclipse Java IDE, JDeveloper, Intellij, Android Studio, MyEclipse or even JEdit.
From Groovy Team:Groovy Editor Online
Groovy is an agile and dynamic language for the Java Virtual Machine. It build upon the strengths of Java but has additional power features inspired by languages like Python, Ruby and Smalltalk and makes modern programming features available to Java developers with almost-zero learning curve. It provides the ability to statically type check and statically compile your code for robustness and performance and supports Domain-Specific Languages and other compact syntax so your code becomes easy to read and maintain. Grrovy makes writing shell and build scripts easy with its powerful processing primitives, OO abilities and an Ant DSL, increases developer productivity by reducing scaffolding code when developing web, GUI, database or console applications, and simplifies testing by supporting unit testing and mocking out-of-the-box.
