(The Fan class) Design a class named Fan to represent a fan. The class contains: 1 Three constants named SLOW, MEDIUM, and FAST with the values 1, 2, and 3 to denote the fan speed. The Fan class VideoNote M08_LIAN6521_09_SE_C08.qxd 2/2/12 10:21 PM Page 331 332 Chapter 8 Objects and Classes 1A private int data field named speed that specifies the speed of the fan (the is SLOW). A private boolean data field named on that specifies whether the fan is on (the is false). 1A private double data field named radius that specifies the radius of the fan ihe default is 5). A string data field named color that specifies the color of the fan (the default is blue). The accessor and mutator methods for all four data fields. 1A no-arg constructor that creates a default fan. 1A method named toString() that returns a string description for the fan. If e fan is on, the method returns the fan speed, color, and radius in one combined string. If the fan is not on, the method returns the fan color and radius along with the string "fan is off" in one combined string. Draw the UML diagram for the class and then implement the class. Write a test program that creates two Fan objects. Assign maximum speed, radius 10, color yellow, and turn it on to the first object. Assign medium speed, radius 5, color blue, and turn it off to the second object. Display the objects by invoking their toString method. SAMPLE RUN #0: java Fan Interactive Session Hide Invisibles Highlight: None Show Highlighted Only O A·10.0.inch-yellow fan-at·aspeed·of 34 A.5.0.inch-blue fan; fan.is offe
(The Fan class) Design a class named Fan to represent a fan. The class contains: 1 Three constants named SLOW, MEDIUM, and FAST with the values 1, 2, and 3 to denote the fan speed. The Fan class VideoNote M08_LIAN6521_09_SE_C08.qxd 2/2/12 10:21 PM Page 331 332 Chapter 8 Objects and Classes 1A private int data field named speed that specifies the speed of the fan (the is SLOW). A private boolean data field named on that specifies whether the fan is on (the is false). 1A private double data field named radius that specifies the radius of the fan ihe default is 5). A string data field named color that specifies the color of the fan (the default is blue). The accessor and mutator methods for all four data fields. 1A no-arg constructor that creates a default fan. 1A method named toString() that returns a string description for the fan. If e fan is on, the method returns the fan speed, color, and radius in one combined string. If the fan is not on, the method returns the fan color and radius along with the string "fan is off" in one combined string. Draw the UML diagram for the class and then implement the class. Write a test program that creates two Fan objects. Assign maximum speed, radius 10, color yellow, and turn it on to the first object. Assign medium speed, radius 5, color blue, and turn it off to the second object. Display the objects by invoking their toString method. SAMPLE RUN #0: java Fan Interactive Session Hide Invisibles Highlight: None Show Highlighted Only O A·10.0.inch-yellow fan-at·aspeed·of 34 A.5.0.inch-blue fan; fan.is offe
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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