Secret Java Stream hacks that will instantly improve your coding efficiency.

Java Streams are powerful but often underutilized to their full potential. Here are some secret Java Stream hacks that will instantly improve your coding efficiency and make your stream operations more elegant and powerful.

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Secret Java Stream hacks that will instantly improve your coding efficiency.

🔥 1. teeing() Collector – Process Data in Two Ways Simultaneously :

Ever wanted to process a stream into two different results at the same time?

✅ Collectors.teeing() allows you to split processing into two collectors and then merge the results.

Example: Find Average & Sum Simultaneously :

import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import java.util.Map;
public class TeeingExample {
    public static void main(String[] args) {
        List<Integer> numbers = List.of(10, 20, 30, 40, 50);
        Map<String, Double> result = numbers.stream()
                .collect(Collectors.teeing(…