macOS Java Troubles :(

[Maleficum]

import static java.lang.System.*;
import java.util.Scanner;

This isn't all of my code. But, when I try to run that with the rest of the code (The code is a mandatory Scanner assignment), I get the following error:

Can anyone help? It's getting annoying that I can't even run simple code...

 

[szark]

Try it without the "static" keyword.

 

[Maleficum]

Try it without the "static" keyword.

When I do that, I get 15 errors, all saying something along the lines of

symbol : class Scanner
location: package util
import java.util.Scanner;

 

[shambolic]

check java version - Scanner needs 1.5

What version of java are you running?

Open Terminal and type "java -version" to find out. The java.util.Scanner class requires 1.5 (or 5.0, depending how you count), whereas a standard Tiger install comes with 1.4.2 as the default, and 1.5 not installed. (It wasn't quite ready when Apple released Tiger)

Assuming you're on Tiger, you can get Apple's implementation of 1.5 here.

I believe - but am prepared to be corrected - that once you install this, it will change the default console version of java to 1.5 for you. If it doesn't, then the following terminal commands will do the trick:

sudo rm /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK

sudo ln -s /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0 /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK

(yes, there's probably a way of updating the symlink rather than deleting/recreating it, but I've never bothered to learn it)