ICSE Class 10 Computer Applications by Pavan | Practice Test to Test Your Knowledge
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ICSE Class 10 Computer Applications

ICSE Class 10 Computer Applications

Comprehensive mock test on Programming concepts, Web Development, and Database Management. Features coding problems and theoretical questions.

2025-07-19
Pavan Pavan
ICSE Class 10 Grade 10 Computer Application

Duration

30 min

Questions

30

Marking

Negative

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Questions Preview

What is the basic difference between a class and an object in object-oriented programming?

A
A class is an instance, and an object is a blueprint
B
A class defines the properties and behaviors, while an object is an instance of the class
C
A class defines the data, while an object defines the behavior
D
A class and an object are the same

Which of the following defines the state of an object in object-oriented programming?

A
The methods and functions of the object
B
The attributes or variables of the object
C
The behavior of the object
D
The name of the object

What is the behavior of an object defined by in object-oriented programming?

A
Attributes or member variables
B
Functions or methods
C
Objects
D
Instance variables

Which of the following is a correct example of an object in real life?

A
A car class
B
A car instance
C
The method to start the car
D
The features of the car

In object-oriented programming, what is the purpose of a class?

A
To define a blueprint for creating objects
B
To store data only
C
To manage data and perform calculations
D
To store the state of an object

Which of the following is an example of an instance variable?

A
The method to calculate the area of a rectangle
B
The width and height of a rectangle
C
The class definition of a rectangle
D
The constructor of a rectangle

What does encapsulation mean in object-oriented programming?

A
The combination of attributes and methods within a class
B
The ability to inherit properties from other classes
C
The process of hiding the internal workings of an object
D
The process of defining a class

What is an example of a composite data type?

A
Integer
B
String
C
Array
D
Float

Which of the following is a primitive data type?

A
Array
B
Class
C
Integer
D
Object

What is the difference between primitive and composite data types?

A
Primitive data types are predefined and composite data types are user-defined
B
Primitive data types are used in calculations while composite data types store large data
C
Primitive data types are smaller in size, while composite data types are larger
D
Primitive data types are more complex, while composite data types are simpler

Which of the following is the correct declaration of an integer variable in Java?

A
int num = 5;
B
integer num = 5;
C
num = 5;
D
float num = 5;

What is the term used for an object that is an instance of a class?

A
Object factory
B
Class member
C
Instance
D
Object method

Which of the following is NOT a characteristic of a class?

A
A class is a blueprint for creating objects
B
A class defines the properties and behavior of an object
C
A class defines the specific values for an object
D
A class can be used to create multiple objects

What does an object factory refer to in object-oriented programming?

A
A place where objects are stored
B
A class that can create objects
C
A function that manipulates objects
D
A method that destroys objects

Which of the following is an example of a composite data type?

A
Integer
B
String
C
Boolean
D
Character

What is the key difference between an integer and a string in programming?

A
An integer is used for numeric calculations, while a string is used to store text
B
An integer stores text, while a string stores numbers
C
An integer stores decimal numbers, while a string stores whole numbers
D
An integer is a composite data type, while a string is a primitive data type

Which of the following can be considered as an example of an object in object-oriented programming?

A
A class that defines the properties of an object
B
An object that is an instance of a class
C
A method that defines the behavior of an object
D
A variable that stores data

Which of the following statements about an object is true?

A
An object is created from a class and has its own identity
B
An object is only a template and cannot have its own identity
C
An object defines only the behavior, not the state
D
An object is not tied to any specific class

Which of the following best describes the concept of 'abstraction' in object-oriented programming?

A
Hiding the complexity of the system by providing a simple interface
B
Defining multiple methods with the same name but different parameters
C
Using only one object for all operations
D
Representing objects as numbers

What do you mean by 'constructor' in object-oriented programming?

A
A method that creates an object of a class
B
A method that deletes an object
C
A method that initializes an object when it is created
D
A method that defines the attributes of an object

What is the role of an 'access modifier' in a class?

A
It defines the visibility of the class and its members
B
It defines the data types of the variables
C
It defines the behavior of the class
D
It defines the methods of the class

Which of the following is a correct example of declaring an object in Java?

A
Rectangle rect = new Rectangle();
B
Rectangle = new rect();
C
Rectangle rect = new Rectangle;
D
rect = new Rectangle();

Which of the following describes a method in object-oriented programming?

A
A function that defines the behavior of a class
B
A function that defines the state of an object
C
A variable that stores data
D
A constructor for creating an object

Which of the following is a valid method signature in Java?

A
public void calculateArea()
B
int calculateArea()
C
calculateArea()
D
void calculateArea

What is the purpose of using the 'this' keyword in object-oriented programming?

A
To refer to the current object instance
B
To create a new object
C
To call a superclass method
D
To access private members of a class

What is the output of the following Java code? class Car { String model; void display() { System.out.println(model); } } Car c = new Car(); c.model = 'Sedan'; c.display();

A
Error in code
B
Sedan
C
null
D
undefined

What is the term used when an object is created based on a class?

A
Instantiation
B
Declaration
C
Inheritance
D
Encapsulation

Which of the following is an example of a real-life class and object?

A
A blueprint of a house and a house built using it
B
A recipe and the cooked dish
C
A bank account and the transactions made
D
All of the above

What does inheritance mean in object-oriented programming?

A
Creating a new class based on an existing class
B
Hiding the internal details of a class
C
Combining multiple methods into one
D
Changing the behavior of a class

What does polymorphism mean in object-oriented programming?

A
The ability of a class to have multiple constructors
B
The ability to process different data types in the same way
C
The ability to create multiple classes from a single class
D
The ability to combine data types