1. Introduction to Java
1. What is a Computer?
Learn what a computer is with a simple definition, components, types, and basic functions. Understand how computers process data and perform tasks efficiently.
2. What is computer language?
Learn what a computer language is with simple explanations. Understand types of computer languages, their purpose, and how they enable communication with computers.
3. Why Computer Language is required?
Learn why computer languages are required. Understand how they allow humans to communicate with computers and write instructions for software and applications.
4. JDK Development Kit 21.0.1 download and install
Download and install JDK 21.0.1 with step-by-step instructions. Learn how to set up Java Development Kit for Windows, Mac, and Linux for Java programming.
5. IDE (Integrated Development Environment)
Learn what an IDE (Integrated Development Environment) is with a complete guide. Understand features, benefits, and popular IDEs for programming and software development.
6. Introduction to BlueJ
Introduction to BlueJ
7. Hello World in Java
Learn how to write your first Java program: Hello World. Step-by-step guide with code examples and explanation for beginners in Java programming.
8. Difference between println and print
Difference between println and print
9. How to Run Java Program using CMD
How to Run Java Program using CMD
10. What is source code?
What is source code?
11. What is Byte code?
What is Byte code?
2. Elementary Concepts of Programming
1. Identifiers in Programming Language
Learn about identifiers in programming languages with clear explanations and examples. Understand rules, types, and best practices for naming variables, functions, and classes.
2. Keywords in Programming Language
Keywords in Programming Language
3. Java A Strongly Typed Language
Java A Strongly Typed Language
4. What is algorithm?
Learn what an algorithm is with clear definition, types, and real-world applications. Understand step-by-step problem-solving techniques in programming and data structures.
3. Basic Assignments in Java
1. Assignment: Calculate Sum and Average of Three Numbers
Assignment: Calculate Sum and Average of Three Numbers
4. DataTypes in java
1. Introduction to Data type Java
Learn Java data types with clear explanations and examples. Understand primitive and non-primitive types, their sizes, ranges, and practical usage in Java programming.
2. Data Type Conversion or Casting in Java
Learn data type conversion or casting in Java with simple explanations and examples. Understand implicit and explicit type casting and avoid common errors.
3. Type Casting with Objects in Java
Type casting in Java
5. Variables in java
1. What is variable in programming?
Learn what a variable is in programming with simple explanations and examples. Understand how variables store data and their types in different programming languages.
6. Common Errors in Program
1. Common Errors in Program
Learn about common errors in programming with simple explanations. Understand syntax errors, logical errors, and runtime errors with examples and tips to avoid them.
2. Syntax Error in Java Programming language
Syntax Error in Java Programming language
3. Runtime error in Java Programming language
Runtime error in Java Programming language
4. Logic Error in Java Programming language
Logic Error in Java Programming language
7. Decision Making in java
1. Control flow in programming
Learn control flow in programming with clear explanations and examples. Understand sequence, selection, and iteration to manage program execution effectively.
2. Decision Making in Java Introduction
Learn decision making in Java with conditional statements and control flow. Understand if, if-else, switch statements, and how to control program execution effectively.
3. if else statement Control Flow in Programming Language
if statement in Programming Language
4. Assignment: Determine if a Number is Even or Odd
Assignment: Determine if a Number is Even or Odd
8. Looping in java
1. Loop Introduction in Java Language
Learn Java loop control statements with clear explanations and examples. Understand for, while, and do-while loops, and how to control loop execution effectively.
2. Why Do We Need Iterative Constructs in Programming?
Why Do We Need Iterative Constructs in Programming?
3. Types of loops in Java
Types of loops in Java
4. While Loop in Java Language
Learn the Java while loop with clear syntax and practical examples. Understand how the while loop works, when to use it, and common mistakes to avoid.
5. While loop example in Java
While loop example in Java
6. Infinite while loop in Java
Infinite while loop in Java
7. Enhanced For Loop (For-Each Loop) in Java
Enhanced For Loop (For-Each Loop) in Java
8. Java Loop MCQ Question
Java Loop MCQ Question
9. Empty Loop in Java
Empty Loop in Java
9. String in java
1. Question 5 - Java MCQ
Question 5 - Java MCQ
2. Question 4 - Java MCQ
Question 4 - Java MCQ
3. Question 3 - Java MCQ
Question 3 - Java MCQ
4. Question 2 - Java MCQ
Question 2 - Java MCQ
5. Question 1 - Java MCQ
Question 1 - Java MCQ
6. Question 6 - Java MCQ
Question 5 - Java MCQ
7. Question 7 - Java MCQ
Question 7 - Java MCQ
10. Array in java
1. Array in java
Learn arrays in Java with simple explanations and examples. Understand array declaration, initialization, accessing elements, and common array operations.
2. Array Introduction in Data Structure
Learn the basics of arrays in data structures with simple explanations. Understand array definition, characteristics, memory representation, and practical examples.
3. Need for Array
Need for Array
4. Types of Array
Types of Array
5. Array Declaration with Initialization Using Values - Java
Java Array Declaration with Initialization Using Values
6. Read all elements of an array using Index
Read all elements of an array using Index
7. Java Array fixed-size sequence/ same type
Java Array fixed-size sequence/ same type
8. Find the size of an array
Find the size of an array
9. Read all elements of an array using Loops
Read all elements of an array using Loops
10. Enhanced For Loop (For-Each Loop) in Java
Enhanced For Loop (For-Each Loop) in Java
11. Java Array Error
Java Array Error
12. Finding the sum of all array elements
Finding the sum of all array elements
13. Array with Function
Array with Function
11. Searching in Arrays (Java)
1. Introduction to Searching in Java
Learn the basics of searching in data structures and programming. Understand linear and binary search techniques with clear explanations and practical examples.
2. Linear Search Searching in Arrays (Java)
Linear Search Searching in Arrays (Java)
3. Binary Search in Arrays (Java)
Binary Search in Arrays (Java)
4. Built-in Searching Methods in Java
Built-in Searching Methods in Java
12. Common mistakes in programming , along with solutions:
1. Accessing Non-Static Members from Static Methods
Accessing Non-Static Members from Static Methods
2. Incorrect Use of Data Structures
Incorrect Use of Data Structures
3. Neglecting Unit Tests
Neglecting Unit Tests
4. Poor Variable Naming
Poor Variable Naming
5. Inconsistent Code Formatting
Inconsistent Code Formatting
6. Not Using Version Control
Not Using Version Control
7. Forgetting to Initialize Variables
Forgetting to Initialize Variables
8. Incorrectly Managing Thread Synchronization
Incorrectly Managing Thread Synchronization
9. Ignoring Security Best Practices
Ignoring Security Best Practices
10. Relying on Floating Point Arithmetic for Precise Calculations
Relying on Floating Point Arithmetic for Precise Calculations
11. Improper Use of Libraries or APIs
Improper Use of Libraries or APIs
12. Overusing Recursive Functions
Overusing Recursive Functions
13. Not Commenting Code or Over-Commenting
Not Commenting Code or Over-Commenting
14. Using Magic Numbers
Using Magic Numbers
15. Overusing Global Variables
Overusing Global Variables
16. Missing Closing Curly Braces
Accessing Non-Static Members from Static Methods
17. Missing break in Switch Case Constructs
Missing break in Switch Case Constructs
18. Confusing Assignment with Comparison (= and ==)
Confusing Assignment with Comparison (= and ==)
19. Using Less Restrictive Access Modifiers
Using Less Restrictive Access Modifiers
20. Forgetting to Free Up Resources
Forgetting to Free Up Resources
21. Off-by-One Errors
Logic Errors
22. Hardcoding Values
Hardcoding Values
23. Ignoring Error Handling
Ignoring Error Handling
24. Copy-Pasting Code Without Understanding
Copy-Pasting Code Without Understanding
25. Infinite Loops mistakes
Infinite Loops mistakes
26. Ignoring Warnings and Code Style Guides
Ignoring Warnings and Code Style Guides
27. Not Refactoring
Not Refactoring
13. Functions / Methods
1. Functions / Methods in Programming Languages
Learn functions or methods in programming languages with clear explanations and examples. Understand their purpose, advantages, and real-world usage.
2. What is one advantage of using a method?
Learn one key advantage of using a method in Java. Understand how methods improve code reusability, readability, and maintainability with examples.
14. Object-Oriented Programming (OOP) Java
1. Encapsulation
Learn encapsulation in Java with clear explanations and examples. Understand data hiding, access modifiers, and how encapsulation improves code security.
2. Student Management System (Basic Version)
Student Management System (Basic Version)
3. Java Program to Implement a 2D Point Class with Printing and Equality Check
Java Program to Implement a 2D Point Class with Printing and Equality Check
4. Java Program to Implement a Circle Class
Java Program to Implement a Circle Class
5. Java Program to Implement a Student Class
Java Program to Implement a Student Class
15. Inheritance in java
1. Inheritance in Java (IS-A)
Learn inheritance in Java with clear definitions and examples. Understand types of inheritance, benefits, and how classes inherit properties in Java.
16. Managing Errors and Exception
1. Introduction to Exception Handling - Java
Learn exception handling in Java with clear explanations and examples. Understand types of exceptions, try-catch blocks, finally, throw, and throws.
17. Java Library Classes and Packages
1. Java Library Classes and Packages
Learn Java library classes and packages with clear explanations and examples. Understand commonly used packages and how to use built-in Java classes.
18. File Operations Java
1. File Operations Java
File Operations Java
19. Project 1: Question and Solution
1. Project Question: Electricity Bill Calculator
Practice a Java project question on an electricity bill calculator. Learn problem statement, logic, and implementation using simple Java concepts.
20. Project 2: Question and Solution
1. Project Question: Hotel Booking System
Practice a Java project question on a hotel booking system. Learn the problem statement, logic, and implementation using core Java concepts.
Java Fundamentals: Building Strong Foundations
If you require additional resources, consider purchasing: ICSE Computer Applications Class 10 – Previous Year Question Papers & Solutions (Java Fundamentals)