Dev environment? JKD?

Question

I have heard of jkd and Dev environment, but what do I basically need for Java, JavaScript, and HTML? I need an IDE for Android development? what's the differences or what is best?
is there a codeplayground kind of program that helps programmers for free?

Answer 1

For HTML, CSS and Javascript you only need a browser and a text editor. For Java you need first a JDK, the Java Development Kit. After you have installed it, I would recommend an IDE like Eclipse or Intellij Idea.

Answer 2

ok, ty.