Shraddha Bhalerao’s Post

A weekly Java Coding Series – program 132 contains() method in Java contains() is a method used to check whether a specific element exists in a collection or to check substring presence in a string. It is useful to perform conditional logic and helps to search quickly without manual loops. It helps to write clean and readable code and reduces boilerplate code. #java #softwaredevelopment #softwareengineer #linkedincreators #skilledshraddha Program and output –

A weekly Java Coding Series – program 134 forEachOrdered() method in Java forEachOrdered() is a terminal operation in Java Streams that processes elements in a defined order. It maintains consistent order when the sequence of elements is important. It ensures predictable output in stream processing. #java #softwaredevelopment #softwareengineer #linkedincreators #skilledshraddha Program and output –

🚀 100 Days of Java Tips — Day 12 Tip: Avoid NullPointerException like a pro NullPointerException is one of the most common errors in Java and one of the easiest to avoid if you follow the right practices. It usually happens when you try to use an object that hasn't been initialized. Example: Calling methods on a null object will crash your application. Why it matters: • Can break your application at runtime • Hard to debug in large systems • Very common in real-world projects Best practices to avoid it: • Always validate inputs before using them • Use "Objects.requireNonNull()" for safety • Return empty collections instead of null • Use "Optional" where it makes sense Don't ignore null checks They can silently break production systems Good developers don't just write code They write safe code Have you faced NullPointerException in your projects? 👇 #Java #JavaTips #Programming #Developers #BackendDevelopment #CleanCode

🚀 Introduction to Executor Framework in Java Managing threads manually can become complex and error-prone in real-world applications. That’s where the Executor Framework comes in. The Executor Framework, introduced in java.util.concurrent, helps manage and control thread execution efficiently using thread pools instead of creating threads manually every time. 🔹 Why use it? Reuses existing threads Improves performance Simplifies concurrency management Makes applications more scalable 🔹 Common Executors FixedThreadPool – fixed number of threads CachedThreadPool – creates threads as needed SingleThreadExecutor – one thread for sequential tasks ScheduledThreadPool – for delayed and periodic tasks 🔹 Key Benefit You submit tasks, and the framework decides how to run them efficiently. 🔹 Interview One-Liner “Executor Framework abstracts thread creation and lifecycle management, making concurrent programming more manageable and production-friendly.” #Java #ExecutorFramework #Multithreading #Concurrency #JavaDeveloper #InterviewPrep #BackendDevelopment

#Java #Topic #DateAndTime #CoreJava In Java, you can work with date and time using both old APIs and the modern Java 8 Date-Time API ✅ 1. Java 8 Date-Time API (Best Practice) This is from the java.time package. Important classes: LocalDate LocalTime LocalDateTime ZonedDateTime DateTimeFormatter #AnandKumarBuddarapu #Java #Trainer #UppugundlaSaiRam founder #CodeGnan #SakethKallepu

Understanding Optional in Java 8 is a game-changer for writing clean and reliable code. I’m sharing this quick guide that explains: 👉 Why Optional was introduced 👉 Problems with traditional null checks 👉 How Optional improves code readability and safety 👉 Practical examples using orElse(), orElseGet(), and ifPresent() 👉 Best practices every Java developer should follow Before Java 8, handling null values often made code messy and error-prone. With Optional, we can now write more expressive and safer code while avoiding common issues like NullPointerException. This visual guide is perfect for: ✔ Interview preparation ✔ Quick revision ✔ Strengthening Java fundamentals Have a look and let me know your thoughts 🙌 #Java #Java8 #Optional #Programming #Coding #SoftwareDevelopment #InterviewPreparation #Developers

Day 11 of Java I/O Journey Today I focused on Exception Handling in Java ⚠️ 🔹 Types of Exceptions • Checked Exceptions → Handled at compile time (e.g., IOException, SQLException) • Unchecked Exceptions → Occur at runtime (e.g., NullPointerException, ArrayIndexOutOfBoundsException) 🔹 Key Keywords • try → Wrap code that may cause an exception • catch → Handle specific exceptions • finally → Executes important code (always runs) 🔹 What I Learned ✔ Use multiple catch blocks for different exceptions ✔ Always log errors for better debugging ✔ Create custom exceptions for cleaner and more meaningful code 💡 Exception handling makes your program more robust and reliable. Learning not just to write code, but to handle errors like a pro ⚡ How do you usually handle exceptions in your projects? #Java #JavaIO #Programming #Coding #SoftwareDevelopment #Developers #LearningInPublic #100DaysOfCode #CodingJourney #JavaDeveloper #BackendDevelopment #TechSkills #Hariom #HariomKumar #Hariomcse

Java Text Blocks, a feature introduced in Java 15, help resolve Sonar issues. However, most developers are not using this feature. It should be adopted and used regularly. https://lnkd.in/gdg2RfeJ

#Day04 After understanding how Java runs internally, the next step is: 👉 How a basic Java program is structured Every Java program follows a simple structure: 🔹 Class Java code is written inside a class. 🔹 main() Method This is the starting point of execution. JVM always looks for the main() method to run the program. 🔹 Method Signature public static void main(String[] args) • public → Accessible from anywhere • static → No object needed to call it • void → Does not return any value • String[] args → Used to pass command-line arguments 📌 In simple terms: No main() method = No program execution Understanding this structure is the first step toward writing Java programs. #Java #Programming #BackendDevelopment #Learning

🚀 Defining and Calling a Simple Java Method This code demonstrates how to define a simple method in Java and call it from the main method. The `addNumbers` method takes two integer arguments, calculates their sum, and prints the result to the console. Calling the method involves using its name followed by parentheses, providing the required arguments. This example illustrates the basic syntax and usage of methods in Java, emphasizing their role in encapsulating functionality. #Java #JavaDev #OOP #Backend #professional #career #development