Got my brand new IDEA 4.0 today, and immediately saw the "Generify..." Refactoring. Given:

interface I {}
class A implements I {}

It turns code like this:

        List list = new ArrayList();
        list.add(new A());
        Iterator iter = list.iterator();
        while (iter.hasNext()) {
            I i = (I) iter.next();
            System.out.println(i);
        }

into this:

        List<I> list = new ArrayList<I>();
        list.add(new A());
        Iterator<I> iter = list.iterator();
        while (iter.hasNext()) {
            I i = iter.next();
            System.out.println(i);
        } 

You can even select multiple classes from the Project Tool Window, and select Refactor | Generify from the context menu to have it done to all of them. Really slick!

Figuring out how to use the 1.5.0 compiler with IDEA 4.0 is a little bit challenging because the documentation still talks about the add_generics-2_2-ea.zip and the gjc-rt.jar and collect.jar files therein.

It turns out, with the 1.5.0 compiler, you don't have to do any of that. Simply:

• Select 1.5.0 as the compiler for the project as you would normally do
• Uncheck the "Use generics-enabled compiler" check box in Compiler settings dialog box
• Add "-source 1.5" to the "Additional javac command line parameters" field

Responses[2]

Posted by Weiqi Gao on February 15, 2004 10:25:34 PM CST #