import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.Arrays.*;
 
class Ideone
{
	public static void main (String[] args)
	{
		List<Integer> integerList = Arrays.asList(0, 1, 2, 3, 42); 
 
		// sequential 
		long howManyOddNumbers = integerList.stream()
											.filter(e -> (e%2) == 1).count(); 
 
		System.out.println(howManyOddNumbers); // Output: 2
 
		// parallel
		long howManyOddNumbersParallel = integerList.parallelStream()
        		                                    .filter(e -> (e%2) == 1).count();
 
		System.out.println(howManyOddNumbersParallel); // Output: 2
	}
}

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