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C:\Users\Mayank\Documents\revision\Demos.java:7: package utils does not exist
import static utils.Repitition.twice;
^
C:\Users\Mayank\Documents\revision\Demos.java:7: static...

1. package utils;
2.
3. public class Repetition {
4. public static String twice(String s) { return s + s; }
5. }
and given another class Demo:

1. // insert code here
2.
3. public class Demo...