Computer Applications Classes
Build a strong Java and OOP foundation with BlueJ for the ICSE Class 9 Computer Applications syllabus.
A complete course covering the official CISCE ICSE Class 9 Computer Applications syllabus, taught with Java using the BlueJ IDE. Students learn object-oriented programming fundamentals, Java data types and operators, input handling, conditional and iterative constructs, and computing ethics, supported by guided lab assignments. Aligned to the current CISCE syllabus with theory and internal-assessment preparation.
What you'll learn
- ✓Distinguish procedure-oriented from object-oriented programming and explain core OOP principles
- ✓Describe the Java compilation process, byte code and the role of the JVM
- ✓Declare variables using correct Java data types and apply implicit and explicit type conversion
- ✓Build expressions using arithmetic, relational, logical and short-hand operators with correct precedence
- ✓Read run-time input using the Scanner class and identify syntax, runtime and logical errors
- ✓Use Math class library methods to solve computational problems
- ✓Write decision-making programs with if-else, if-else-if ladders and switch-case
- ✓Solve problems using for, while, do-while and nested loops, including patterns and series
Full syllabus
Mapped to the official ICSE curriculum.
01Introduction to Object Oriented Programming Concepts+
- Principles of Object Oriented Programming
- Difference between Procedure Oriented and Object Oriented programming
- Concepts of OOP: encapsulation, inheritance, polymorphism, abstraction
- Data abstraction and data hiding
02Introduction to Java+
- History and features of Java
- Types of Java programs: Applets and Applications
- Java compilation process
- Java source code, Byte code, Object code
- Java Virtual Machine (JVM)
03Elementary Concept of Objects and Classes+
- Modelling entities and their behaviour using objects
- Class as a group of objects / a user-defined data type
- Class as a blueprint and object as an instance
- Objects encapsulating state (data members) and behaviour (methods)
04Values and Data Types+
- Character set, ASCII code, Unicode
- Escape sequences
- Tokens: keywords, identifiers, literals, punctuators, operators
- Constants and variables
- Primitive and non-primitive (composite) data types
- Type conversion: implicit (coercion) and explicit (casting)
05Operators in Java+
- Forms of operators: unary, binary, ternary
- Arithmetic, relational, logical, assignment operators
- Increment and decrement operators (prefix and postfix)
- Short-hand / compound assignment operators
- Precedence and associativity of operators
- new operator for dynamic memory; dot operator to access class members
- Evaluation of expressions
06Working with Methods+
- Defining and using methods
- Method signature, parameters and return type
- Pure and impure methods
- Calling methods and passing arguments
07Input in Java+
- Initialization vs parameters vs run-time input
- Introduction to packages
- Input stream using the Scanner class
- Scanner methods: nextInt(), nextLong(), nextShort(), nextFloat(), nextDouble(), next(), nextLine(), next().charAt(0)
- Types of errors: syntax, runtime and logical errors
08Mathematical Library Methods+
- Introduction to the package java.lang (default)
- Methods of the Math class (pow, sqrt, abs, max, min, round, random, cbrt, ceil, floor, etc.)
09Conditional Constructs in Java+
- if, if-else, if-else-if ladder
- Nested if statements
- switch-case, default, break and fall-through
- Menu-driven programs
- System.exit(0) to terminate a program
- Ternary operator as a conditional construct
10Iterative Constructs in Java+
- Concept and types of loops
- Entry-controlled loops: for and while
- Exit-controlled loop: do-while
- Variations in looping statements
- Jump statements: break and continue
- Inter-conversion between for, while and do-while (finite and infinite loops)
11Nested for Loops+
- Concept of loops within loops
- Generating patterns of numbers, characters and symbols
- Series and table programs using nested loops
12Computing and Ethics+
- Ethical use of computers and software
- Intellectual property rights, plagiarism and software piracy
- Open-source vs proprietary software
- Responsible and safe computing
Tools you'll use
Exam pattern
Theory: one written paper of 2 hours for 100 marks (Section A compulsory short-answer questions, ~40 marks, covering the whole syllabus; Section B with choice, ~60 marks). Internal Assessment: 100 marks, based on practical lab assignments completed through the year.
Practical / project
Internal Assessment (100 marks) through practical Java/BlueJ lab work. Students complete a minimum of 20 lab assignments across the year to reinforce concepts covered in class, evaluated by the subject teacher.
Who it's for
ICSE Class 9 students beginning programming who want a solid Java and object-oriented programming foundation, and those preparing for the Class 9 theory exam and internal assessment ahead of Class 10 board work.
What's included
- ✓Live, interactive online classes with Kajal Ma'am — concept-first teaching with shared-screen Java coding in BlueJ
- ✓Chapter-wise Kwick Notes covering every unit of the CISCE ICSE Class 9 Computer Applications syllabus
- ✓Worked textbook solutions (APC / Kips BlueJ style) with fully explained Java programs
- ✓Regular programming assignments — a minimum of 20 lab programs across the year, matching ICSE Internal Assessment expectations
- ✓Live doubt-solving sessions where students get individual answers, not generic replies
- ✓Theory exam practice with section-wise question sets modelled on the 2-hour, 100-mark written paper
- ✓BlueJ practical and Internal Assessment guidance — writing, running and debugging programs for the lab record
- ✓Pre-exam revision sets on output, error-spotting and program-writing questions
Why study Computer Applications?
ICSE Class 9 Computer Applications is where students first meet Java, BlueJ and object-oriented programming — the exact foundation the Class 10 board paper and Internal Assessment build directly upon. The Class 9 course carries a 2-hour, 100-mark theory paper plus 100 marks of practical Internal Assessment, so habits formed now (clean program structure, correct data types, accurate output tracing) decide how confidently a student scores in Class 10. Because the syllabus is highly logical and predictable, it is also one of the most genuinely scoring subjects when the fundamentals are understood rather than memorised. Getting Java right in Class 9 turns the Class 10 board year from catch-up into consolidation.
Java is one of the most widely used languages in software engineering, Android development and enterprise systems, and the object-oriented thinking introduced here underpins almost every modern programming language. A strong Class 9 start gives students a real head-start toward computer science and engineering streams in Class 11-12 and toward B.Tech, BCA and CS degrees. The logic, debugging and problem-solving skills built here also transfer directly to data, AI and IT careers.
Learn directly from Kajal Ma'am
An MCA who has taught computer subjects since 2006, Kajal Mehta personally mentors every batch — turning dense theory into clear, exam-ready understanding.
Course FAQs
Are the ICSE Class 9 Computer Applications classes live or recorded?+
Do you offer both group batches and one-to-one classes, and how do the fees differ?+
Is the course aligned to the official CISCE ICSE syllabus?+
Will the course help with the BlueJ practical exam and Internal Assessment?+
My child has never coded before — is Class 9 Computer Applications difficult?+
Can we try a class before enrolling?+
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