Object instantiation with new in C Sharp (C#) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a new instance of the class Car.

C Sharp (C#)

Car myCar = [1] Car();

Drag options to blanks, or click blank then click option'

Anew

Bcreate

Cmake

Dinit

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'create' or 'make' instead of 'new' causes a syntax error.

Forgetting the 'new' keyword leads to a compile-time error.

In C#, the keyword new is used to create a new instance of a class.

2fill in blank

medium

Complete the code to instantiate a Person object with the default constructor.

C Sharp (C#)

Person person = [1] Person();

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Anew

Binit

Ccreate

Dmake

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'init' or 'create' instead of 'new' causes errors.

Omitting the keyword entirely results in a compile error.

The new keyword is required to instantiate an object in C#.

3fill in blank

hard

Fix the error in the code to correctly instantiate a Book object.

C Sharp (C#)

Book myBook = [1]Book();

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Amake

Bcreate

Cinit

Dnew

Attempts:

3 left

💡 Hint

Common Mistakes

Leaving out the space after the keyword causes syntax errors.

Using incorrect keywords like 'create' or 'make' leads to errors.

The new keyword must be followed by the class name and parentheses to create an object.

4fill in blank

hard

Fill both blanks to instantiate a Student object and assign it to a variable.

C Sharp (C#)

[1] [2] = new Student();

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AStudent

Bvar

Cstudent

Dnew

Attempts:

3 left

💡 Hint

Common Mistakes

Using the class name twice causes syntax errors.

Using 'new' as a variable name is invalid.

Use var to let the compiler infer the type, and student as the variable name.

5fill in blank

hard

Fill all three blanks to instantiate a Rectangle object with width and height parameters.

C Sharp (C#)

Rectangle [1] = new Rectangle([2], [3]);

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Arect

B5

C10

Drectangle

Attempts:

3 left

💡 Hint

Common Mistakes

Using the class name as a variable name causes confusion.

Swapping the width and height values changes the rectangle size.

The variable name is rect, and the constructor parameters are width=5 and height=10.