使用Stream API比较两个字符串和计数差异

import java.util.stream.IntStream;
import java.util.stream.Stream;

public class StringComparator {
    public static int compareAndCountDifference(String str1, String str2) {
        Stream<Character> stream1 = str1.chars().mapToObj(c -> (char) c);
        Stream<Character> stream2 = str2.chars().mapToObj(c -> (char) c);

        return IntStream.range(0, Math.min(str1.length(), str2.length()))
                .map(i -> stream1.skip(i).findFirst().get() - stream2.skip(i).findFirst().get())
                .sum();
    }

    public static void main(String[] args) {
        String str1 = "Hello";
        String str2 = "Holla";
        int difference = compareAndCountDifference(str1, str2);
        System.out.println("Difference: " + difference);
    }
}