/* 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) throws java.lang.Exception
	{
		NavigableMap< String , List< String > > map = new TreeMap<>() ;
 
		map.put( "animals" , List.of( "dog" , "cat" , "bird" ) ) ;
		map.put( "people" , List.of( "Alice" , "Bob" , "Carol" ) ) ;
		map.put( "cars" , List.of( "Honda" , "Mazda" ) ) ;
 
		System.out.println( "map.toString() ➡ " + map ) ;
	}
}

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