The IDE's internationalization tools let you easily insert internationalization strings while you write your code as well as internationalize files that are already written. You can also check resource bundles to make sure each key referenced by your code exists.
When you internationalize existing source files, the IDE searches for every customizable occurrence of a quoted text string. If you decide to internationalize the string, the IDE replaces it with a method call and adds the string to the appropriate resource bundle. You can select from several code formats for generating internationalized strings, or you can use your own custom format.