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Java Local Development Environments Exploring Your IDE Clean up this mess

Soumitra Mehrotra
Soumitra Mehrotra
1,468 Points

Are you sure you ran the reformat code action? This seems suspect: import java.util.*.how come i get this error?

why did I get this error even after reformating?

Messy.java
import java.util.*;

public class Messy {
    public static void main(String[] args) {
        System.out.println("one");
        System.out.println("two");
        System.out.println("three");
        System.out.println("four");
        System.out.println("five");
        /*Please comment out this line and
        this line as well with a hotkey that does multi - line commenting*/
        List<String> numberWords = Arrays.asList("six", "seven", "eight", "nine");
        for (String numberWord : numberWords) {
            // Use the sout shortcut to write out numberWord;
            System.out.println(numberWord);
        }
    }
}
results.txt
one
two
three
four
five
six
seven
eight
nine
Geocarlos Alves
Geocarlos Alves
13,969 Points

For that one, you are supposed to use Intellij IDEA to import the classes one by one. It will check which classes you are using from the java.util package and import only them (I guess that is for you not to import all the classes and not have to list just the one you need manually...). Unfortutale, I do not remember the shortcut for that... The teacher shows it in the video, though.

Geocarlos Alves
Geocarlos Alves
13,969 Points

Ok, the shortcut on Windows is Alt+Enter. Or you may click on the 'lightbulb' icon, if you're on a Mac and can't figure out the shortcut there. Click the option that reads 'Replace with single imports'.