/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
    public static void main(String[] args) {
        OuterClass.InnerClass innerClass = new OuterClass.InnerClass();
        innerClass.printHello();
    }
}
 
 
 
class OuterClass {
    static class InnerClass{
        public void printHello() {
            System.out.println("Hello!");
        }
    }
}
 

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