Question

I just installed Ubuntu 8.04 and Eclipse.

I made a very simple Hello World program in order to ensure that everything is running smoothly. When I attempted to use the Scanner class for acquiring some user input I got a very odd error.

My code:

import java.util.Scanner;  class Test {     public static void main (String [] args) {         Scanner sc = new Scanner(System.in);         System.out.println("hi");     } } 

Error message

Exception in thread "main" java.lang.Error: Unresolved compilation problems:      Scanner cannot be resolved to a type     Scanner cannot be resolved to a type     at test.main(test.java:5) 

Answer 1

The Scanner class is new in Java 5. I do not know what Hardy’s default Java environment is, but it is not Sun’s and therefore may be outdated.

I recommend installing the package sun-java6-jdk to get the most up-to-date version, then telling Eclipse to use it.