Eclipse: Java Enum auto-completion of switch case

Question

Is there a CTRL+space -like way of "auto-constructing" a switch case around a given Java Enum in Eclipse? I'd like a stub with all Enum cases...

Answer 1

It has been in Eclipse for ages. It's admittedly only a bit hard to find. First start with

switch (myEnum) {  } 

At that point, your cursor would usually be inside the statement block {}. You need to put your cusror back to the line with the switch keyword and press Ctrl+1 and choose Add missing case statements. This way it will insert any possible case.

You'd intuitively expect this option to be available inside the statement block {} as well, but no.

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Update: since Eclipse Kepler (or perhaps already Juno, but it's so instable that I never really used it), this option is finally available via Ctrl+1 inside the statement block as well.

Answer 2

I don't know if it's possible to do this as a template, because the template would have to know which enum type you were using. But you could write a little script to print out the statement for you, and then just copy its output into your source file.

public class SwitchWriter {   public static void printSwitchStatement(String varName, Class<?> E) {     System.out.format("switch(%s) {\n", varName);     for (Object o : E.getEnumConstants()) {       System.out.format("case %s:\n  // TODO: Auto-generated switch statement stub\n  break;\n", o);     }     System.out.println("default:\n  // TODO: Auto-generated switch statement stub\n}");   } } 

Output of SwitchWriter.printSwitchStatement("action", java.awt.Desktop.Action.class):

switch(action) { case OPEN:   // TODO: Auto-generated switch statement stub   break; case EDIT:   // TODO: Auto-generated switch statement stub   break; case PRINT:   // TODO: Auto-generated switch statement stub   break; case MAIL:   // TODO: Auto-generated switch statement stub   break; case BROWSE:   // TODO: Auto-generated switch statement stub   break; default:   // TODO: Auto-generated switch statement stub }