How to create classes and interfaces in Linux without using an IDE

Question

I am currently writting programs in linux like this: From the command line I do following steps:

$ touch project.java
$ nano project.java

and I write the code.

I have questions: how can I create new classes, interfaces and so on? Because in IDE like Betbeans I can right click on projects name with and choose "create new class" or "create new interface" and it is created but how do it in Linux if I dont use an IDE?

Answer 1

If you don't use an IDE, you type everything up yourself, with a command line editor - emacs, vi, or nano, like you were using before. (or CAT >> for serious pros).

An Interface looks like this : ( Read Java Sun's tutorial for more about Interfaces! )

interface Bicycle {

       void changeCadence(int newValue);   // wheel revolutions per minute

}

A Class looks like this (Read Java Sun's tutorial for more about Classes!) :

class Bicycle {   
       int cadence = 0;    
       void changeCadence(int newValue) {
            cadence = newValue;
       }
}

Etc, it's all in the documentation. Keep reading Java's handy tutorial and you'll find it all.

Answer 2

The current approach works, if you want to avoid IDEs (except the touch is unnecessary).

Just type the entire source code yourself.

For example to create a class called Foo, use your preferred editor and edit a file Foo.java with the following content:

public class Foo {
}

Save and compile and you're done.