Given class Point with constructor Point(int x, int y), how do you create an array of 2 points at (1,2) and (3,4)?

hard🚀 Application Q9 of Q15

C Sharp (C#) - Classes and Objects

Given class Point with constructor Point(int x, int y), how do you create an array of 2 points at (1,2) and (3,4)?

APoint[] points = { Point(1, 2), Point(3, 4) };

BPoint[] points = new Point[2] { new Point(1, 2), new Point(3, 4) };

CPoint[] points = new Point[2]; points[0] = Point(1, 2); points[1] = Point(3, 4);

DPoint[] points = new Point[] { Point(1, 2), Point(3, 4) };

Step-by-Step Solution

Solution:

Step 1: Understand array initialization with objects
When specifying size and initializer, syntax requires new Type[size] { ... }.
Step 2: Check each option
Point[] points = new Point[2] { new Point(1, 2), new Point(3, 4) }; correctly declares array size and initializes with new Point objects. Point[] points = { Point(1, 2), Point(3, 4) }; misses new keyword for objects, B misses new keyword for objects, C misses new keyword for objects.
Final Answer:
Point[] points = new Point[2] { new Point(1, 2), new Point(3, 4) }; -> Option B
Quick Check:
Array with size and initializer needs new Type[size] { ... } [OK]

Quick Trick: Use new Type[size] { new Type(args), ... } for arrays [OK]

Common Mistakes:

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