(English Medium) ICSE Class 10 - CISCE Important Questions for Computer Applications

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What is meant by a package? Give an example.

Appears in 2 question papers
Chapter: [0.0104] Operators in Java
Concept: Operators in Java

Name any two basic principles of Object-oriented Programming.

Appears in 1 question paper
Chapter: [0.0101] Introduction to Object Oriented Programming Concepts
Concept: Introduction of Object-oriented Programming

Name any two OOP’s principles.

Appears in 1 question paper
Chapter: [0.0101] Introduction to Object Oriented Programming Concepts
Concept: Introduction of Object-oriented Programming

What are identifiers?

Appears in 1 question paper
Chapter: [0.0101] Introduction to Object Oriented Programming Concepts
Concept: Introduction of Object-oriented Programming

What are keywords ? Give an example.

Appears in 1 question paper
Chapter: [0.0101] Introduction to Object Oriented Programming Concepts
Concept: Introduction of Object-oriented Programming

Name the type of error ( syntax, runtime or logical error) in each case given below: 

(i) Math.sqrt (36 – 45)
(ii) int a;b;c;

Appears in 1 question paper
Chapter: [0.0101] Introduction to Object Oriented Programming Concepts
Concept: Introduction of Object-oriented Programming

Write a function prototype of the following: 

A function PosChar which takes a string argument and a character argument and returns an integer value.

Appears in 1 question paper
Chapter: [0.0101] Introduction to Object Oriented Programming Concepts
Concept: Introduction of Object-oriented Programming

Give the output of the following expression:
a+= a++ + ++a + – – a + a – – ; when a = 7

Appears in 1 question paper
Chapter: [0.0101] Introduction to Object Oriented Programming Concepts
Concept: Introduction of Object-oriented Programming

Using the switch statement, write a menu-driven program for the following: 

(i) To print Floyd’s triangle [Given below]

1

2      3

4      5       6

7      8       9      10

11    12    13     14    15

(ii) To display the following pattern:

I

I     C

I     C      S

I     C      S     E

For an incorrect option, an appropriate error message should be displayed.

Appears in 1 question paper
Chapter: [0.0101] Introduction to Object Oriented Programming Concepts
Concept: Introduction of Object-oriented Programming

Which of the following are valid comments ?

(i) /* comment */
(ii) /* comment
(iii) / / comment
(iv) */ comment */ 

Appears in 1 question paper
Chapter: [0.0101] Introduction to Object Oriented Programming Concepts
Concept: Introduction of Object-oriented Programming

Give two differences between the switch statement and the If-else statement.

Appears in 1 question paper
Chapter: [0.0101] Introduction to Object Oriented Programming Concepts
Concept: Introduction of Object-oriented Programming

A mechanism where one class acquires the properties of another class:

Appears in 1 question paper
Chapter: [0.0101] Introduction to Object Oriented Programming Concepts
Concept: Principles of Object Oriented Programming (OOP)

Why is an object called an instance of a class ?

Appears in 1 question paper
Chapter: [0.0102] Elementary Concept of Objects and Classes
Concept: Elementary Concept of Objects and Classes

Write the return data type of the following function: startsWith( )

Appears in 1 question paper
Chapter: [0.0103] Values and Data Types
Concept: Values and Data Types

Write the return data type of the following function: random( )

Appears in 1 question paper
Chapter: [0.0103] Values and Data Types
Concept: Values and Data Types

If the value of basic=1500, what will be the value of tax after the following statement is executed?

tax = basic > 1200 ? 200 : 100

Appears in 1 question paper
Chapter: [0.0103] Values and Data Types
Concept: Values and Data Types

What is the value of xl if x=5?
x1 = + +x – X+ + + –x

Appears in 1 question paper
Chapter: [0.0103] Values and Data Types
Concept: Values and Data Types

What are the types of casting shown by the following examples: 

(i) char c = (char) 120;
(ii) int x = ‘t’;

Appears in 1 question paper
Chapter: [0.0103] Values and Data Types
Concept: Values and Data Types

Evaluate the value of a. if value of p = 5, q = 19  
int n = (q – p) > (p – q) ? (q – p) : (p – q)

Appears in 1 question paper
Chapter: [0.0103] Values and Data Types
Concept: Values and Data Types

Arrange the following primitive-data types in ascending order of their size:
(i) char (ii) byte (iii) double (iv) int

Appears in 1 question paper
Chapter: [0.0103] Values and Data Types
Concept: Values and Data Types
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