Java 25: Changes to main method rules

EM Coding 6 is up. A bunch of Java code for plotting basic smith charts and S Parameter reflection coefficients (in this case out 2n3478) and checking out our data without resorting to 3rd party utilities. Basic Swing and awt. that you can integrate into your own work!

Java 25 just made Java feel modern ☕️ No more public class for small programs. No more boilerplate before logic. Earlier: public class App { public static void main(String[] args) { System.out.println("Hello"); } } Now: void main() { IO.println("Hello"); } Same performance. Same reliability. Java didn’t change its soul it just removed the noise. #Java #Java25 #CleanCode #Programming #BackendDeveloper #TechUpdates

Many people assume a Java file needs the public static void main(String[] args) method to be considered valid. Reality Check: A Java file containing a class can compile perfectly fine (javac) without a main method! It successfully becomes a .class file (our sprinter getting ready! ✅). But when you try to run it (java MyClass), the JVM hits the finish line and says, "Wait, where's the starting gun?" 🛑 The main method is the essential entry point the JVM needs to execute the code. Key takeaway: Compilation ≠ Execution. Don't forget your entry point! Frontlines EduTech (FLM) Fayaz S #Java #Programming #SoftwareDevelopment #CodingTips #flm #CoreJava #java

Setting the Margin Between Cells in a JTable learn Java programming https://lnkd.in/gvah55PJ #java #learnjava #javaforbeginners, Setting the Margin Between Cells in a JTable

🚀 Comparable vs Comparator in Java Understanding how Java sorts objects is a must for every Java developer. 🔹 Comparable (Natural Ordering) Implemented inside the class Defines a default sorting logic Uses compareTo() Example: Sort books by title 🔹 Comparator (Custom Ordering) Implemented in a separate class Allows multiple sorting strategies Uses compare() Example: Sort books by author, price, or rating 💡 Key takeaway: Use Comparable when there is one natural order. Use Comparator when you need flexibility and multiple ways to sort. 📌 Perfect for real-world projects, and clean code design. #Java #Comparable #Comparator #JavaDeveloper #CodingConcepts #Programming #LearningJava

Day 1 Java buzzword robustness create once run anywhere are ex keywords static A class word final if declared it's can't be changed goto A new version like c class A wrapup for object object A instance for wrapup for object

🚀Tip of the Day: Small Changes, Big Performance Gains! Sometimes improving your Java application isn’t about big rewrites it's about smarter choices in the small details. 🔹 Use StringBuilder instead of String concatenation in loops It saves memory and boosts performance. 🔹 Prefer var for cleaner and more readable code (Java 10+) Helps reduce noise without losing type safety. 🔹 Use Streams wisely Great for readability, but overusing them in heavy loops can slow things down. 🔹 Cache expensive operations If you're repeating a costly calculation, store the result and reuse it. Java gives us powerful tools, we just need to use them the right way. ⚡ Keep coding smart. Keep improving. 💻🔥 #Java #JavaDeveloper #BackendDevelopment #CodingTips #Programming #SoftwareEngineering #TechCommunity #CleanCode #PerformanceOptimization #Developers

💡 Java Tip: String vs StringBuilder vs StringBuffer Understanding the differences between these three classes is essential for writing efficient and maintainable Java code. • String is immutable and thread-safe • StringBuilder is mutable and optimized for performance • StringBuffer is mutable and thread-safe, but slower due to synchronization Selecting the right option based on use case and concurrency needs leads to cleaner design and better performance. #Java #SoftwareEngineering #BackendDevelopment #CoreJava #CleanCode #Programming #JavaDeveloper #TechLearning

Sharing a Table Model between JTable Components learn Java programming https://lnkd.in/gqYza7cz #java #learnjava #javaforbeginners, Sharing a Table Model between JTable Components

Changing the Name of Column in a JTable learn Java programming https://lnkd.in/g4uJNM-2 #java #learnjava #javaforbeginners, Changing the Name of Column in a JTable