/* 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
{
	private int hostility;
    public void checkHostility() {
        nonNull(hostility);
    }
 
    private void nonNull(Object obj) {
        if (obj != null)
            System.out.println(obj + " - " + obj.getClass());
    }
 
	public static void main (String[] args) throws java.lang.Exception
	{
        new Ideone().checkHostility();
	}
}

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