You want to create a formatted string showing a person's name and age, where age is right-aligned in a 3-character wide field. Which sprintf call achieves this?

hard📝 Application Q8 of 15

MATLAB - String Handling

You want to create a formatted string showing a person's name and age, where age is right-aligned in a 3-character wide field. Which sprintf call achieves this?

name = 'Anna'; age = 7;

Astr = sprintf('Name: %s, Age: %3d', name, age);

Bstr = sprintf('Name: %s, Age: %-3d', name, age);

Cstr = sprintf('Name: %s, Age: %03d', name, age);

Dstr = sprintf('Name: %s, Age: %d3', name, age);

Step-by-Step Solution

Solution:

Step 1: Understand width and alignment
%3d means integer right-aligned in 3 spaces; %-3d is left-aligned.
Step 2: Check options
str = sprintf('Name: %s, Age: %3d', name, age); uses %3d for right alignment; B uses left alignment; C pads with zeros; D is invalid.
Final Answer:
str = sprintf('Name: %s, Age: %3d', name, age); -> Option A
Quick Check:
Right-align integer with %3d [OK]

Quick Trick: Use %3d for right-aligned integers in width 3 [OK]

Common Mistakes:

Using %-3d for right alignment
Using %03d which pads zeros
Incorrect format like %d3

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You want to create a formatted string showing a person's name and age, where age is right-aligned in a 3-character wide field. Which sprintf call achieves this?

Step 1: Understand width and alignment

Step 2: Check options

Final Answer:

Quick Check:

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