ISO 9001:2015 Certified MSME Registered 4.8 Rating ICSE Board Aligned
School Curriculum Course

ICSE Class 9 Computer
Syllabus in Howrah & Kolkata

Master the complete ICSE Class 9 Computer Applications syllabus — covering all 12 Units from OOPS Concepts and Java Introduction through Data Types, Operators, Control Structures, Methods, String Handling, Arrays, to Computing and Ethics. Build strong Java programming fundamentals aligned with the ICSE Board curriculum.

OOPS Java Control Flow Strings Arrays
2/Week
Classes
12 Months
Duration
12
Units
10–15
Batch Size
Course Details

What You Get

Everything your child needs to ace ICSE Class 9 Computer Applications — 12 Units of structured Java programming and computer fundamentals aligned with the ICSE Board syllabus.

OOPS Concepts

Understand the core principles of Object Oriented Programming — Class, Object, Encapsulation, Abstraction, Inheritance, and Polymorphism — with real-world analogies to build a strong conceptual foundation.

Java Fundamentals

Learn Java from scratch — its history, features, JDK/JRE/JVM architecture, the "Write Once Run Anywhere" concept, and write your first Java programs using classes, objects, and the main() method.

Data Types & Operators

Master all primitive and non-primitive data types, variable declaration rules, type casting, and every operator category — arithmetic, relational, logical, assignment, unary, ternary — with operator precedence.

Control Structures

Gain complete command over decision-making (if, if-else, if-else-if ladder, switch-case) and looping constructs (for, while, do-while) including nested loops, break, and continue statements.

Methods & Strings

Work with Java's built-in Math library methods and master String handling — from creation and immutability to 15+ String methods like charAt(), substring(), compareTo(), and practical programs.

Arrays & Ethics

Learn one-dimensional and two-dimensional arrays — declaration, traversal, searching, sorting — along with Computing Ethics covering cyber safety, IPR, plagiarism, and responsible technology use.

Full Syllabus

12 Units — Complete Breakdown

Every unit of the ICSE Class 9 Computer Applications syllabus, expanded with detailed subtopics for thorough exam preparation.

Units 1–3: OOPS Concepts & Java Introduction

Build a solid conceptual foundation in Object Oriented Programming and get introduced to the Java programming language — its features, architecture, and how to write your first programs using classes and objects.

OOPS Principles JDK/JRE/JVM Class & Object
Unit 1
1.1
Procedural vs Object Oriented ProgrammingUnderstanding the paradigm shift from procedure-based to object-based programming with real-world examples and comparisons of approach, reusability, and maintainability.
1.2
Four Pillars of OOPSDetailed study of Encapsulation (data hiding), Abstraction (hiding complexity), Inheritance (code reuse through parent-child relationship), and Polymorphism (one interface, many forms) with everyday analogies.
1.3
Advantages of OOPSCode reusability, modularity, easy troubleshooting, real-world modeling, and scalability — why modern software development relies on the object oriented approach.
Unit 2
2.1
History and Features of JavaOrigin of Java by James Gosling at Sun Microsystems, key features — simple, object oriented, platform independent, secure, robust, portable, multithreaded, and distributed.
2.2
Java Platform: JDK, JRE, JVMUnderstanding the Java Runtime Environment, Java Development Kit, and Java Virtual Machine — their roles, differences, and how Java achieves platform independence through bytecode.
2.3
"Write Once, Run Anywhere" ConceptHow Java source code (.java) is compiled to bytecode (.class) and executed by JVM on any platform — the complete compilation and execution cycle with a diagram.
2.4
First Java Program: Hello WorldWriting, compiling, and running your first Java program — understanding class declaration, the main() method signature (public static void main), System.out.println(), and proper syntax rules.
Unit 3
3.1
What is a Class? Syntax and StructureClass as a blueprint/template — declaring a class, understanding access modifiers, class body with fields and methods, naming conventions (PascalCase), and writing meaningful class definitions.
3.2
What is an Object? Creating ObjectsObject as an instance of a class — using the new keyword, understanding reference variables, memory allocation on heap, creating multiple objects from one class, and the difference between class and object.
3.3
Class Members: Fields and MethodsDeclaring data members (instance variables) and member methods inside a class, accessing them using dot operator (obj.field, obj.method()), and understanding the relationship between class structure and object state.
3.4
Writing Simple Java ProgramsPractical programs: creating a Student class with name and marks, a Rectangle class with area calculation, and a Calculator class — applying class, object, fields, and methods together.

Units 4–6: Data Types, Operators & Input

Master Java's type system, all operator categories with precedence rules, and learn to accept user input using the Scanner class — the building blocks for writing interactive programs.

Primitive Types Type Casting Scanner Class
Unit 4
4.1
Primitive Data Types in JavaDetailed study of all 8 primitive types — byte (1 byte), short (2 bytes), int (4 bytes), long (8 bytes), float (4 bytes), double (8 bytes), char (2 bytes), boolean (1 bit) — their ranges, default values, and when to use each.
4.2
Non-Primitive Data TypesUnderstanding String, Arrays, and Classes as reference types — how they differ from primitives (stored on heap vs stack), and an introduction to the String class and array types.
4.3
Variable Declaration, Initialization & RulesSyntax for declaring and initializing variables, naming conventions (camelCase), rules for valid identifiers, multiple declarations, and understanding the scope (local vs instance variables).
4.4
Constants and the final KeywordDeclaring constants using the final keyword, difference between variable and constant, naming convention for constants (UPPER_SNAKE_CASE), and practical use cases.
4.5
Type Casting: Implicit and ExplicitWidening (implicit) conversion — byte→short→int→long→float→double; Narrowing (explicit) conversion with cast operator; potential data loss in narrowing; and practical examples of both.
Unit 5
5.1
Arithmetic OperatorsAddition (+), Subtraction (-), Multiplication (*), Division (/), Modulus (%) — integer vs floating-point division, the modulus operator for remainder, and operator shorthand (+=, -=, etc.).
5.2
Relational / Comparison OperatorsEqual to (==), Not equal to (!=), Greater than (>), Less than (<), Greater than or equal to (>=), Less than or equal to (<=) — always return boolean true/false, used in conditions.
5.3
Logical OperatorsAND (&&), OR (||), NOT (!) — truth tables, short-circuit evaluation, combining multiple conditions, and practical examples like checking range validity.
5.4
Assignment, Unary & Ternary OperatorsSimple assignment (=) and compound assignments (+=, -=, *=, /=, %=); Unary operators (++, --, +, -) — prefix vs postfix difference; Ternary operator (? :) as a shorthand for if-else.
5.5
Operator Precedence and AssociativityComplete precedence table from highest (postfix ++, --) to lowest (assignment), how associativity (left-to-right or right-to-left) resolves ambiguity, and using parentheses for clarity.
Unit 6
6.1
Using the Scanner Class for InputImporting java.util.Scanner, creating a Scanner object (Scanner sc = new Scanner(System.in)), understanding System.in as the input stream, and the role of Scanner in reading console input.
6.2
Scanner Methods for Different Data TypesnextInt() for integers, nextFloat() for floats, nextDouble() for doubles, nextLine() for full strings, next() for single words, next().charAt(0) for single characters — and when to use each.
6.3
Solving Practical Programs Using InputPrograms: accepting two numbers and performing all arithmetic operations, calculating simple interest, converting temperature (Celsius to Fahrenheit), swapping two numbers, and finding the sum of digits of a number.

Units 7–8: Decision Making & Iterative Constructs

Gain complete control over program flow — make decisions using conditional statements and repeat tasks efficiently using loops, including nested structures and loop control statements.

if-else switch-case for / while / do-while
Unit 7
7.1
Simple if StatementSyntax and flowchart of the if statement, understanding the condition (boolean expression), the body block, and when to use a simple if — checking a single condition and executing a block.
7.2
if-else StatementTwo-way branching — syntax, flowchart, and programs: checking if a number is even or odd, positive or negative, and pass/fail based on marks.
7.3
if-else if-else LadderMulti-way branching for checking multiple conditions in sequence — syntax, flowchart, and programs: grading system (A/B/C/D/F), finding the largest of three numbers, and vowel/consonant check.
7.4
Nested if StatementsPlacing an if inside another if — checking hierarchical conditions, programs: validating a date (checking month, then days), and determining the greatest of three numbers using nested conditions.
7.5
switch-case StatementSyntax with case, break, and default — understanding how switch evaluates an expression, fall-through behavior without break, and programs: simple calculator (using operator as switch expression), day of week, and month name display.
7.6
Differences: if-else vs switch-caseComparing both decision-making constructs — when to use which, limitations of switch (only int, char, String), advantages of if-else for range checks, and exam-focused key points.
Unit 8
8.1
for Loop: Syntax, Flowchart & ExamplesThree-part structure: initialization, condition, update — understanding the execution flow, infinite loops, and programs: printing numbers 1 to N, sum of first N natural numbers, factorial calculation.
8.2
while Loop: Syntax, Flowchart & ExamplesEntry-controlled loop — when to use while (unknown number of iterations), execution flow, and programs: reversing a number, counting digits, finding GCD using Euclidean method.
8.3
do-while Loop: Syntax, Flowchart & ExamplesExit-controlled loop — guaranteed at least one execution, difference from while, and programs: menu-driven programs, checking if a number is a palindrome, input validation loops.
8.4
Nested LoopsLoop inside a loop — understanding outer and inner loop execution, row-column logic, and programs: printing number patterns (triangle, pyramid, reverse triangle), multiplication table, and Floyd's triangle.
8.5
break and continue Statementsbreak to exit a loop prematurely, continue to skip the current iteration — their effect in for, while, and do-while loops, labeled break/continue (brief), and programs: finding the first factor, skipping even numbers.

Units 9–10: Built-in Methods & String Handling

Leverage Java's powerful built-in library classes (especially Math) and gain mastery over String manipulation — one of the most frequently tested topics in ICSE board exams.

Math Class String Methods Immutability
Unit 9
9.1
What Are Built-in Methods?Understanding pre-defined methods provided by Java's standard library — no need to write them, just call them. Difference between user-defined and built-in methods, and the concept of importing packages (java.lang.* auto-imported).
9.2
Math Class Methods — Part 1Math.sqrt() for square root, Math.pow() for power, Math.abs() for absolute value — syntax, return types, and example programs: finding hypotenuse, calculating compound interest, distance between two points.
9.3
Math Class Methods — Part 2Math.ceil() (round up), Math.floor() (round down), Math.round() (nearest integer), Math.min(), Math.max(), Math.random() (0.0 to 1.0) — programs: generating random numbers in a range, finding smallest/largest of three numbers.
9.4
Understanding Method Signature and Return TypeHow to read method documentation — return type (double, int, etc.), parameter list, static context (calling with Math.methodName()), and why Math methods are called without creating an object.
Unit 10
10.1
What is a String? String vs char arrayString as a sequence of characters, belonging to java.lang.String class, differences from character arrays — String is an object with methods, char array is a primitive collection, and when to use each.
10.2
Creating Strings: Literals vs new KeywordString s1 = "Hello" (string pool) vs String s2 = new String("Hello") (heap) — understanding String constant pool, how == behaves differently for both, and why String literals are memory efficient.
10.3
String Methods — Length & Character Accesslength() to get total characters, charAt(index) to get character at a position (0-based indexing), and programs: counting specific characters, extracting each character of a string using a loop.
10.4
String Methods — Search & CompareindexOf() to find first occurrence, lastIndexOf() for last occurrence, compareTo() for lexicographic comparison (returns negative/zero/positive), equals() for content equality, equalsIgnoreCase() for case-insensitive comparison — with exam-style programs.
10.5
String Methods — Transform & ExtracttoUpperCase(), toLowerCase(), trim() (removes leading/trailing spaces), substring(beginIndex), substring(beginIndex, endIndex), replace(old, new), concat() — programs: converting case, extracting first/last name, removing extra spaces.
10.6
String Methods — Check & UtilitystartsWith(prefix), endsWith(suffix), contains(sequence), isEmpty(), toCharArray() — and understanding the immutable nature of Strings (why every method returns a new String, original never changes).
10.7
Practical String ProgramsPalindrome check (word and phrase), reversing a string, counting vowels and consonants, counting words in a sentence, checking if a string is a valid keyword, and extracting initials from a full name.

Units 11–12: Arrays & Computing Ethics

Learn to store and manipulate collections of data using one-dimensional and two-dimensional arrays, and understand the ethical responsibilities that come with using technology in the digital age.

1D & 2D Arrays Searching & Sorting Cyber Ethics
Unit 11
11.1
What is an Array? Need for ArraysWhy we need arrays — storing multiple values of the same type under a single name vs declaring separate variables, real-world analogies (locker system, apartment building), and advantages of contiguous memory allocation.
11.2
One-Dimensional Arrays: Declaration & InitializationThree ways: declare then assign, declare with values, and using new keyword — int[] arr = new int[5]; understanding array length property, default values (0 for int, 0.0 for double, false for boolean, null for objects).
11.3
Traversing and Processing 1D ArraysUsing for loops and enhanced for-each loop to access elements, programs: finding sum and average of array elements, finding the largest and smallest element, counting even/odd numbers in an array.
11.4
Searching in Arrays: Linear SearchSequential search algorithm — checking each element one by one, understanding best case (first element), worst case (last element/not found), time complexity (O(n)), and writing the complete Java implementation with a program.
11.5
Sorting Arrays: Bubble SortAdjacent element comparison and swapping, multiple passes to "bubble" the largest element to the end, understanding the number of comparisons in each pass, tracing through an example, and writing the complete Java program.
11.6
Two-Dimensional Arrays: Declaration & AccessArrays of arrays — matrix representation, declaration (int[][] matrix), initialization, accessing elements using two indices [row][col], and understanding row-major storage in memory.
11.7
Matrix Operations and 2D Array ProgramsDisplaying a matrix using nested loops, finding sum of all elements, sum of diagonal elements (trace), adding two matrices, and programs: storing and displaying student marks in a 2D array (rows = students, columns = subjects).
Unit 12
12.1
Cyber Safety and SecurityUnderstanding cyber threats — malware, viruses, worms, trojans, phishing, hacking, identity theft. Best practices: strong passwords, two-factor authentication, avoiding suspicious links, and keeping software updated.
12.2
Intellectual Property Rights (IPR)What is IPR — legal rights over creations of the mind. Types: Copyright (literary, artistic, software), Patents (inventions, 20 years), Trademarks (brand logos, names), Trade Secrets — and why they matter for software developers.
12.3
Plagiarism and Its ConsequencesDefinition of plagiarism in academic and software contexts, how to avoid it (proper citation, paraphrasing, original work), consequences in school exams and professional life, and tools used to detect plagiarism.
12.4
Digital Footprint and Online ReputationWhat is a digital footprint — active (what you post) and passive (what others post about you, browsing history). How it affects college admissions and jobs, managing privacy settings, and thinking before sharing online.
12.5
Free and Open Source Software (FOSS)Understanding FOSS — software that is free to use, modify, and distribute. Examples: Linux, LibreOffice, Firefox, Apache. Differences between freeware, shareware, and open source. Benefits of FOSS for students and developers.
12.6
Responsible Use of Technology & PrivacyEthical guidelines for technology use — respecting others' privacy, not sharing personal information publicly, understanding data protection laws, netiquette (online etiquette), and being a responsible digital citizen.
Learning Outcomes

After Completing This Course

Your child will be fully prepared for the ICSE Class 9 Computer Applications board exam and have a strong foundation for Class 10.

Think in Objects

Apply OOPS principles naturally — identify classes, objects, and relationships in any problem statement before writing a single line of code.

Write Java Programs Independently

From simple output to complex programs with input, conditions, loops, arrays, and string operations — write, compile, and debug Java code confidently.

Implement Algorithms

Understand and implement Linear Search, Bubble Sort, and other fundamental algorithms — trace them on paper and code them in Java.

Score High in Board Exams

Be exam-ready with chapter-wise worksheets, school-pattern question papers, and practice programs that mirror actual ICSE board exam questions.

Master String Manipulation

Handle any String-based question in the exam — from palindrome checks and character counting to extracting substrings and comparing strings.

Understand Digital Ethics

Answer theory questions on cyber safety, IPR, plagiarism, and FOSS with clarity — essential for the Computing and Ethics unit in the board exam.

Who Is This For

Built For These Students

ICSE Class 9 Students

Students currently in Class 9 under the ICSE board who want to build a strong foundation in Computer Applications and score well in their school and board exams.

Students New to Programming

Students who have never written a line of code — this course starts from absolute zero with OOPS concepts and builds up to full Java programs, arrays, and strings.

Exam-Focused Learners

Students who want structured exam preparation — chapter-wise worksheets, pattern-based question papers, and focused practice on high-mark topics like String handling and Arrays.

FAQ

Frequently Asked Questions

What is the fee for the ICSE Class 9 Computer course at PBA Institute?

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The fee for the ICSE Class 9 Computer course at PBA Institute is ₹800 per month for Batch Class.

Is this course aligned with the ICSE Class 9 syllabus?

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Yes. This course strictly follows the official ICSE Class 9 Computer Applications syllabus covering all 12 Units — from OOPS Concepts and Java Introduction to Arrays and Computing Ethics — ensuring students are fully prepared for board exams.

Do you provide practice papers and school-level assessments?

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Yes. We provide chapter-wise worksheets, school-pattern question papers, programming exercises for each unit, and assessments after every module to ensure thorough exam readiness for ICSE Class 9 students.

What programming language is taught in ICSE Class 9 Computer?

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Java is the primary programming language taught in ICSE Class 9 Computer Applications. Students learn Java from scratch — starting with OOPS concepts, moving through syntax, data types, operators, control structures, methods, strings, and arrays.

Does my child need any prior coding experience?

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No prior coding experience is required. The course is designed for absolute beginners and starts with fundamental concepts of OOPS before introducing Java syntax, ensuring every student builds a solid foundation from the ground up.

Will this course help in Class 10 as well?

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Absolutely. The Class 9 course builds the foundational Java skills that are directly extended in Class 10. Students who complete this course will have a significant advantage as Class 10 topics build upon the same Java concepts covered here.

Ready to Master Class 9 Computer?

Join 1000+ students who have trusted PBA Institute for their ICSE Computer preparation. Enroll today and start your journey to becoming a confident Java programmer.