String vs character array in MATLAB - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a string variable.

MATLAB

str = [1]('Hello');

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

Astring

Bchar

Ccell

Darray

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'char' instead of 'string' creates a character array, not a string array.

In MATLAB, string creates a string array, which is different from a character array.

2fill in blank

medium

Complete the code to create a character array.

MATLAB

charArray = [1]('Hello');

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

Acellstr

Bstring

Carrayfun

Dchar

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'string' creates a string array, not a character array.

The char function creates a character array in MATLAB.

3fill in blank

hard

Fix the error in the code to concatenate two strings properly.

MATLAB

result = [1] + " World";

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

A'Hello'

B"Hello"

Cstring('Hello')

Dchar('Hello')

Attempts:

3 left

💡 Hint

Common Mistakes

Using character arrays with + causes an error.

In MATLAB, string concatenation with + works only with string arrays, not character arrays.

4fill in blank

hard

Fill both blanks to create a character array and concatenate it with another.

MATLAB

a = [1]('Hi'); b = [2](' there'); result = [a b];

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

Achar

Bstring

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing string and character arrays causes errors or unexpected results.

Character arrays are created with char and concatenated using square brackets [].

5fill in blank

hard

Fill all three blanks to create a string array, convert it to character array, and get its length.

MATLAB

str = [1]({'cat', 'dog'}); charArr = [2](str(1)); len = [3](charArr);

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

Astring

Bchar

Clength

Dcellstr

Attempts:

3 left

💡 Hint

Common Mistakes

Using cellstr instead of string creates cell arrays, not string arrays.

First create a string array with string, then convert the first element to a character array with char, and finally get its length with length.