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DataCamp

Optimizing Code in Java

via DataCamp

Overview

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Learn key techniques to optimize Java performance, from algorithm efficiency to JVM tuning and multithreading.

Understanding Code Performance Fundamentals

Performance optimization is a critical skill for Java developers building enterprise-scale applications. This course provides a comprehensive foundation in code optimization techniques, from algorithmic complexity analysis to advanced performance patterns. You'll learn systematic approaches to identify, measure, and optimize performance bottlenecks in Java applications.


Advanced Performance Analysis

Begin with a deep dive into algorithmic complexity using Big-O notation. Through practical implementations with Java collections, you'll learn to evaluate both time and space complexity trade-offs. You'll master the selection of appropriate data structures based on performance requirements, understanding the implications of choosing between Lists, Sets, and Maps in different scenarios.


JVM Performance Optimization

Develop expertise in Java Virtual Machine internals and performance measurement. Learn to utilize professional tools to monitor crucial metrics including CPU utilization, memory consumption, and latency. You'll gain practical experience with garbage collection mechanisms and Just-In-Time compilation, enabling you to design applications that leverage the JVM's optimization capabilities effectively.


Enterprise-Scale Performance Patterns

Explore advanced optimization techniques essential for high-performance applications. Master concurrent programming with multi-threading and asynchronous operations, implement efficient caching strategies, and utilize initialization patterns that enhance application performance. Through practical examples, you'll learn to apply these patterns in real-world scenarios.
Upon completion, you'll possess the technical expertise to analyze application performance, implement optimization strategies, and design high-performance Java applications. This course equips you with the skills needed to address performance challenges in enterprise environments and build scalable, efficient systems.

Syllabus

  • Fundamentals of Software Performance
    • In this chapter, you'll develop essential skills in software efficiency analysis. You will learn to evaluate time and space complexity and compare the performance of sets, maps, and lists. By the end, you'll have the analytical foundation to assess software performance and select appropriate data structures for your Java applications.
  • Measuring Code Performance
    • This chapter equips you with essential techniques for measuring the performance of Java applications. You'll learn to identify bottlenecks using System.nanoTime(), understand JVM memory architecture, track memory and CPU usage, and explore how garbage collection and JIT compilation affect your code's efficiency.
  • Improving Code Performance
    • In this chapter, you'll learn how to leverage multi-threading with both Thread objects and parallel streams to process operations concurrently. You'll also explore thread pools with ExecutorService and asynchronous programming with CompletableFuture.

Taught by

Pavlos Kosmetatos

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