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Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Section 8.3: Object Initialization: Constructors 17. What is a constructor? How is a constructor different from other methods? 18. What are two major problems with the following constructor? public void Point (int initialx, int initialy) { int x = initialX; int y initialY; } 19. (You must complete Self-Check Problem 7 before answering this question.) Add a constructor to the Name class that accepts a first name, middle initial, and last name as parameters and initializes the Name object's state with those values. 20. What is the meaning of the keyword this? Describe three ways that the keyword can be used. 21. Add a constructor to the Point class that accepts another Point as a parameter and initializes this new Point to have the same (x, y) values. Use the keyword this in your solution.
Transcribed Image Text:Section 8.3: Object Initialization: Constructors 17. What is a constructor? How is a constructor different from other methods? 18. What are two major problems with the following constructor? public void Point (int initialx, int initialy) { int x = initialX; int y initialY; } 19. (You must complete Self-Check Problem 7 before answering this question.) Add a constructor to the Name class that accepts a first name, middle initial, and last name as parameters and initializes the Name object's state with those values. 20. What is the meaning of the keyword this? Describe three ways that the keyword can be used. 21. Add a constructor to the Point class that accepts another Point as a parameter and initializes this new Point to have the same (x, y) values. Use the keyword this in your solution.
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