[Solved] Identify the error in this PowerShell code:$num = 5$num.ToUpper() — Ans: ToUpper() method does not exist for integers | PowerShell

PowerShell - Working with Objects

Identify the error in this PowerShell code:

$num = 5
$num.ToUpper()

AToUpper() should be called as ToUpper without parentheses

BVariable $num is not defined

CToUpper() method does not exist for integers

DMissing parentheses after $num

Step-by-Step Solution

Solution:

Step 1: Check variable type
$num is an integer (5), not a string.
Step 2: Verify method availability
ToUpper() is a string method, not valid for integers.
Final Answer:
ToUpper() method does not exist for integers -> Option C
Quick Check:
ToUpper() on int = D [OK]

Quick Trick: Only strings have ToUpper() method [OK]

Common Mistakes:

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