Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
Ahmed M
4,008 Pointswhy do we do This Inside the body of the constructor pls help
why do we do This Inside the body of the constructor public Map(int width, int height) { ''Width = width; Height = height;'' }
2 Answers
Steven Parker
231,248 PointsThat's "field initialization". The values passed as arguments to the constructor are being copied into the field variables of the new object.
Ahmed M
4,008 PointsOkay I understand now Thank you :)
Ahmed M
4,008 PointsAhmed M
4,008 Pointssorry can you please explain to me In more detailed please
Steven Parker
231,248 PointsSteven Parker
231,248 PointsThe "width" and "height" (lower case) are parameters of the constructor. They represent values that will be provided when an object of this type will be created. But "Width" and "Height" (capital letters) are the names of fields (or perhaps properties) of the object — check the class definition to find them.
By copying the arguments (which are temporary) into the fields, they become permanent parts of the the object.