Java Method Overloading vs Overriding: Key Differences

Day 10 – Learning Java Full Stack Today let's learn about While Loop. The while loop is used when we want to execute a block of code repeatedly as long as a condition is true. Syntax: while (condition) { // loop body } The loop keeps running until the condition becomes false. Example: int a = 1; while (a <= 5) { System.out.println("JAVA"); a++; } Execution Flow: When a = 1 → JAVA When a = 2 → JAVA When a = 3 → JAVA When a = 4 → JAVA When a = 5 → JAVA When a = 6 → Condition becomes false → Loop terminates Key takeaway: A while loop is condition-based repetition. If the condition never becomes false, it can lead to an infinite loop — so updating the variable is very important. More learning updates coming soon #Java #JavaFullStack #WhileLoop #ControlStatements #LearningInPublic #CoreJava

Day 8 – Java | Pass by Value & Object Reference Behavior 🚀 Today’s learning at Tap Academy focused on how Java passes data to methods and how memory plays a key role in this behavior. I learned that Java always follows pass by value, but the outcome differs based on what is passed: For primitive data types, a copy of the value is passed, so changes inside a method do not affect the original variable. For objects, a copy of the reference is passed. Multiple references can point to the same object in heap memory, so changes made using one reference are reflected through others. Key takeaways: Difference between changing an object’s state vs changing the reference How stack and heap memory work together during method calls Why object data changes but primitive values don’t This session clarified one of the most commonly misunderstood concepts in Java and strengthened my understanding of memory management and OOP fundamentals. #Java #OOPS #PassByValue #ObjectReference #HeapMemory #StackMemory #TapAcademy #LearningJourney #Day8

Day 12 – Learning Java Full Stack. Today’s topic was one of the most important concepts in Java — Methods. A method is a named block of reusable code that performs a specific task. Instead of writing the same logic again and again, we can define it once and call it whenever needed. Structure of a Method- Creating a method involves two parts: 1️⃣ Method Declaration 2️⃣ Method Definition General Syntax: access_modifier modifier return_type methodName(arguments) { // method body } Key Points to Learn: A method must be declared inside a class A method executes only when it is called The same method can be called multiple times A class can contain multiple methods Methods improve modularity and reusability They make programs easier to read, maintain, and modify. 📌 Key Takeaway: Methods are the foundation of structured programming. Without methods, building scalable applications would be difficult. #Java #JavaFullStack #MethodsInJava #ProgrammingBasics #LearningInPublic #CoreJava

🚀 Day 7 of Learning Java Today, I practiced Loop-based problems in Java to strengthen my logic and understanding. 📌 Problems I solved today: 1️⃣ Sum of first N natural numbers → Used for loop to calculate total sum. 2️⃣ Print numbers divisible by both 3 and 5 (1–50) → Used for loop + if condition. 3️⃣ Print numbers using do-while loop → Understood that code runs at least once. 4️⃣ Print numbers using while loop → Condition checked before execution. 5️⃣ Print multiplication table of a number → Used for loop with proper formatting. Learning step by step and focusing on basics 💻 Consistency is the key 💯 #Java #JavaBeginner #ConditionalStatements #IfElse #SwitchCase #LearningJourney #ProgrammingBasics

🚀 Day 14 | Core Java Learning 📅 27/01/2026 Today’s session was all about one of the most important foundation concepts in Java: 🔹 Pass By Value 🔹 Pass By Reference Understanding these concepts is crucial before moving deeper into Object-Oriented Programming, as they explain how Java handles primitive data types vs objects, memory behavior, and method calls. 📌 Key Takeaways: Primitive data types work on pass by value Objects work using reference (address) sharing Java is always pass by value, but for objects, the value passed is the reference Multiple references can point to the same object, causing changes to reflect everywhere Grateful to Tap Academy for the clear explanations and practical examples that make learning Java easier and more interesting. 💡💻 Step by step, building a strong foundation in Core Java. 🔖 Hashtags: #Day14 #CoreJava #PassByValue #PassByReference #JavaProgramming #ObjectOrientedProgramming #TapAcademy #JavaLearner #FullStackDevelopment #LearningJourney #JavaBasics #ProgrammingConcepts

Day 12 of Learning Java 💻 Today I learned something interesting about Runtime Polymorphism. In Java, the method that gets executed is decided at runtime, not at compile time. Even if a parent class reference is used, the child class method gets called. Example idea: Parent ref = new Child(); Even though the reference is of Parent type, the overridden method of Child runs. This is called Dynamic Method Dispatch. It works because of: ✔ Method Overriding ✔ Inheritance ✔ Upcasting It’s powerful because it allows flexibility and loose coupling in programs. Java decides which method to execute based on the object, not the reference type — and that’s what makes runtime polymorphism so interesting #Java #OOP #RuntimePolymorphism #MethodOverriding #DynamicMethodDispatch #100DaysOfCode #ProgrammingJourney #SoftwareDevelopment #CodingLife

If you’re starting with Java, these core programming terminologies are the foundation you must understand 👇 ✔️ Data Types ✔️ Variables ✔️ Literals ✔️ Operators ✔️ Keywords ✔️ Identifiers Once these concepts are clear, writing and reading Java code becomes 10× easier 🚀 This post is part of my Java learning series where I break concepts down in the simplest way possible 🚀 Let me know in the comments — how are you liking this Java series so far? Swipe through the carousel and save it for revision. . . Thanks to Harshita Mittal for the design touch!. . . #Java #JavaSeries #LearnJava #JavaProgramming #ProgrammingBasics #CodingForBeginners #SoftwareDevelopment #TechLearning #ComputerScience #DeveloperCommunity

Day 27.. 💡 Today’s Learning: Method Overloading in Java Today, I explored Method Overloading in more depth! 🚀 🔹 What is Method Overloading? Method Overloading allows a class to have: ✅ Same method name ✅ Different parameters The Java compiler differentiates overloaded methods based on: 1️⃣ Number of parameters 2️⃣ Data types of parameters 3️⃣ Sequence of parameters 4️⃣ Implicit typecasting 👉 The compiler also considers implicit typecasting while resolving overloaded methods, which can sometimes lead to ambiguity if multiple methods match. 🔎 Bonus Insight: Yes, the main() method can be overloaded in Java. However, the JVM always starts execution from the standard signature: public static void main(String[] args) Any overloaded version must be called manually. ✨ Key Takeaway: Method Overloading improves code readability, reusability, and flexibility, making it a powerful concept in Java’s Object-Oriented Programming. Learning something new every day! 💪 #Java #OOP #MethodOverloading #Programming #LearningJourney #JavaDeveloper

💻 Common Java Mistakes I Faced While Learning OOPJ While practicing Java (OOPJ), I realized that errors are not failures — they are feedback. Sharing a few basic but very common mistakes I personally faced during coding 👇 🔹 Using a Java keyword as a variable name 🔹 Assigning values to variables with wrong data types 🔹 Class name and file name not matching 🔹 Writing multiple main methods without proper overloading 🔹 Forgetting to close a class or main method 🔹 Trying to change the value of a final variable 🔹 Attempting to make a constructor static 🔹 Accessing instance variables directly inside static methods Each error forced me to understand: how Java actually works, the difference between static vs instance, and why the compiler complains (not what it complains about). 💡 Biggest takeaway: If your program runs perfectly on the first try, you’re probably not learning enough. Still learning, still debugging, still improving 🚀 Attaching all the errors for quick glance: #Java #OOPJ #LearningByDoing #ProgrammingErrors #ComputerScience #StudentLife #Debugging

📘 Day 16 of My Java Learning Journey Today, I revised Arrays in Java in more detail to strengthen my fundamentals. What is an Array? An array is a data structure that stores multiple values of the same data type under a single variable name. Instead of creating many separate variables, we can store all values in one array. Arrays 🔹 Regular Array – Equal number of columns (rectangular array) 🔹 Jagged Array – Unequal number of columns Syntax to Declare an Array data_type[] array_name; 📦 Types of Arrays 1️⃣ 1D Array – Single list int[] a = new int[5]; a[0] = 10; 2️⃣ 2D Array – Rows & columns int[][] a = new int[2][3]; a[1][2] = 30; 3️⃣ 3D Array – Multiple blocks int[][][] a = new int[2][3][4]; a[1][0][2] = 50; #Day16 #Java #Arrays #ProgrammingBasics #CodingJourney #LearningJava@Tap academy