Parallel Streams in Java 8: Process Data Faster (Boost Performance Instantly!)

🚀 Introduction

Processing large data sets? Java 8 Parallel Streams let you use multi-threading without extra effort!

Parallel Streams in Java 8: Process Data Faster (Boost Performance Instantly!)

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📝 The Problem: Sequential Processing

import java.util.List;

public class NumberProcessor {
    public static int sumNumbers(List<Integer> numbers) {
        return numbers.stream()
                      .reduce(0, Integer::sum);
    }
}

✔ Works fine, but only uses one CPU core.

✅ The Solution: Use Parallel Streams

import java.util.List;

public class NumberProcessor {
    public static int sumNumbers(List<Integer> numbers) {
        return numbers.parallelStream()
                      .reduce(0, Integer::sum);
    }
}