C Sharp (C#) - Classes and Objects
You need to track how many instances of a class have been created and assign each instance a unique sequential ID starting from 1. Which design correctly uses static and instance members in C#?
You need to track how many instances of a class have been created and assign each instance a unique sequential ID starting from 1. Which design correctly uses static and instance members in C#?
hard🚀 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand requirements
Count total instances and assign unique IDs starting at 1.Step 2: Use static for shared data
A static counter tracks total instances across all objects.Step 3: Use instance field for unique ID
Each object stores its own unique ID assigned from the static counter.Final Answer:
Use a static counter incremented in the constructor and an instance field to store the unique ID assigned from the counter. -> Option CQuick Check:
Static for shared count, instance for unique ID [OK]
Quick Trick: Static tracks total; instance stores unique ID [OK]
Common Mistakes:
MISTAKES- Using instance fields to count all objects
- Assigning IDs using static fields only without instance storage
- Confusing static and instance roles
Master "Classes and Objects" in C Sharp (C#)
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