/* 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 > names = List.of(
			"Alice", "Bobby", "Bobette" , "Carol" 
		);
		
		long countBobs = 
		    names
		    .stream()
		    .filter( 
		    	( String name ) -> name.contains( "Bob" )
		    )
		    .count() 
		;
		
		System.out.println( "countBobs: " + countBobs ) ;
	}
}