Java Programming - Ajay Dabade | Python & Java Learning Notes - Page 7

1-Introduction to OOPs in Java (Object-Oriented Programming)

Java is a class-based, object-oriented programming language designed to build structured, reusable, and maintainable software ☕While basic Java focuses on syntax and control flow, Object-Oriented Programming (OOPs) focuses on design, structure, and real-world modeling. OOPs organizes…

Control Statements

ArrayList in Java – Complete Guide for Beginners (With Confusions, Examples & Common Mistakes)

Introduction to ArrayList in Java 📘 When beginners start learning Java, they usually begin with arrays. Arrays are powerful, but they come with a major limitation — fixed size. Once an array is created, its size…

Control Statements

Leetcode Programs for practice

Leet Code Problems: - 🟢 Level 1: Absolute Beginner (Math, Conditions, Simple Loops) (Perfect if you just learned for, while, if-else) Fizz Buzzhttps://leetcode.com/problems/fizz-buzz/ Number of Steps to Reduce a Number to Zerohttps://leetcode.com/problems/number-of-steps-to-reduce-a-number-to-zero/ Subtract the Product and…

String methods in java

Control Statements

String Methods in Java

String Methods in Java In Java, String is one of the most frequently used classes.Almost every Java program deals with text — names, input, passwords, messages, file data, etc. Java provides many built-in String methods to…

Arrays in Java for Beginners – Single, Multidimensional & Common Confusions

Control Statements

1-Arrays in Java for Beginners – Single, Multidimensional & Common Confusions

🔰 Introduction to Arrays in Java In Java programming, one of the first major problems beginners face is how to store and manage multiple values efficiently.Creating a separate variable for every value is not practical and…

Working with while and do while loop

Control Statements

5-Working with while and do while loop

🔁 Introduction to Loops in Java In programming, we often need to execute a block of code multiple times. Writing the same statements again and again is inefficient and makes the program difficult to manage. To…

5-Escape Characters in Java – Complete Guide with Examples, Tricks & Common Confusions

Data Types in Java

5-Escape Characters in Java – Complete Guide with Examples, Tricks & Common Confusions

Introduction While working with strings in Java, beginners often face problems like: printing quotes inside strings moving text to a new line adding tabs or backslashes unexpected output All these problems are solved using escape characters.…

Variable Scope in Java – Explained with Simple Examples & Common Confusions

Data Types in Java

4-Variable Scope in Java – Explained with Simple Examples & Common Confusions

Introduction In Java, many students know how to declare variables, but struggle with where those variables can be used.This problem is related to variable scope. Errors like: cannot be resolved to a variable unexpected output confusion…

Loops explanation made easy. Do not miss it

Control Statements

🔁 Loops explanation made easy. Do not miss it.

IntroductionThe for loop is one of the most essential tools in Java programming. It helps you repeat tasks with precision and control, especially when the number of repetitions is known. Beginners often understand its syntax but…

Understanding the Scanner Class the most easy way

Data Types in Java

3-Understanding the Scanner Class the most easy way.

⌨️ Accepting User Input in Java Using Scanner Class 📌 Introduction Most real-world programs are interactive, meaning they need to accept input from the user at runtime. Java provides several ways to take input, and among…