/* 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
	{
		List<String> list1 = new ArrayList<>();
		list1.add("foo");
		System.out.println("list1: " + list1 ); // foo
 
		List<String> list2 = new ArrayList<>( list1 ) ;
		list1.clear();
		list2.add( "bar" );
		System.out.println( "list1: " +list1 ); // empty
		System.out.println( "list2: " +list2 ); // foo, bar
	}
}

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