EBK BIG JAVA: EARLY OBJECTS, INTERACTIV
6th Edition
ISBN: 8220102010314
Author: Horstmann
Publisher: YUZU
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Chapter 10, Problem 7RE
a.
Explanation of Solution
Rectangle a = r;
The given assignment is a legal assignment.
Explanation:
- Given that “r” has a reference to a “new Rectangle(5, 10, 20, 30)”...
b.
Explanation of Solution
Shape b = r;
The given assignment is a legal assignment.
Explanation:
- Given that “r” has a reference to a “new Rectangle(5, 10, 20, 30)”.
- A “Shape” class is a super class for “Rectangle” class...
c.
Explanation of Solution
String c = r;
The given assignment is not a legal assignment.
Explanation:
- Given that “r” has a reference to a “new Rectangle(5, 10, 20, 30)”.
- A “Rectangle” object can be referenced only by its super or sub class type and interface, which is implemented by that class...
d.
Explanation of Solution
ActionListener d = r;
The given assignment is not a legal assignment.
Explanation:
- Given that “r” has a reference to a “new Rectangle(5, 10, 20, 30)”.
- A “Rectangle” object can be referenced only by its super or sub class type and interface, which is implemented by that class.
- In the given assignment, a reference variable “d” of a type of “ActionListener” is point to an object “r” of “Rectangle”...
e.
Explanation of Solution
Measurable e = r;
The given assignment is not a legal assignment.
Explanation:
- Given that “r” has a reference to a “new Rectangle(5, 10, 20, 30)”.
- A “Rectangle” object can be referenced only by its super or sub class type and interface, which is implemented by that class...
f.
Explanation of Solution
Serializable f = r;
The given assignment is a legal assignment.
Explanation:
- Given that “r” has a reference to a “new Rectangle(5, 10, 20, 30)”.
- A “Rectangle” object can be referenced only by its super or sub class type or interface, which is implemented by that class...
g.
Explanation of Solution
Object g = r;
The given assignment is a legal assignment.
Explanation:
- Given that “r” has a reference to a “new Rectangle(5, 10, 20, 30)”.
- A “Object” class is a super class for “Rectangle” class...
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Chapter 10 Solutions
EBK BIG JAVA: EARLY OBJECTS, INTERACTIV
Ch. 10.1 -
Suppose you want to use the average method to...Ch. 10.1 - Prob. 2SCCh. 10.1 - Prob. 3SCCh. 10.1 -
What is wrong with this code?
Measurable meas =...Ch. 10.1 -
What is wrong with this code?
Measurable meas =...Ch. 10.2 -
Can you use a cast (BankAccount) meas to convert...Ch. 10.2 - Prob. 7SCCh. 10.2 -
Why is it impossible to construct a Measurable...Ch. 10.2 -
Why can you nevertheless declare a variable whose...Ch. 10.2 -
What does this code fragment print? Why is this...
Ch. 10.3 - Prob. 11SCCh. 10.3 - Prob. 12SCCh. 10.3 - Prob. 13SCCh. 10.3 -
Write a method max that finds the larger of any...Ch. 10.3 -
Write a call to the method of Self Check 14 that...Ch. 10.4 -
Suppose you want to use the average method of...Ch. 10.4 - Prob. 17SCCh. 10.4 - Prob. 18SCCh. 10.4 - Write a method max with three arguments that finds...Ch. 10.4 - Write a call to the method of Self Check 19 that...Ch. 10.5 - Why would you use an inner class instead of a...Ch. 10.5 - When would you place an inner class inside a class...Ch. 10.5 - How many class files are produced when you compile...Ch. 10.6 - Why is it necessary that the real class and the...Ch. 10.6 - Why is the technique of mock objects particularly...Ch. 10.7 - Prob. 26SCCh. 10.7 - Prob. 27SCCh. 10.7 - Prob. 28SCCh. 10.7 - Prob. 29SCCh. 10.7 - If an inner class accesses a local variable from a...Ch. 10.8 - Prob. 31SCCh. 10.8 - Prob. 32SCCh. 10.9 - Prob. 33SCCh. 10.9 - Prob. 34SCCh. 10.10 - Prob. 35SCCh. 10.10 - Why must the MousePressListener class supply five...Ch. 10 - Prob. 1RECh. 10 - Prob. 2RECh. 10 - Prob. 3RECh. 10 - Prob. 4RECh. 10 - Prob. 5RECh. 10 - The classes Rectangle2D.Double, Ellipse2D.Double,...Ch. 10 - Suppose r contains a reference to a new...Ch. 10 - Classes such as Rectangle2D. Double,...Ch. 10 - Prob. 9RECh. 10 - What happens if you try to use an array of String...Ch. 10 - Prob. 11RECh. 10 - What happens if you pass an array of strings and...Ch. 10 - Consider this top-level and inner class. Which...Ch. 10 - What happens when an inner class tries to access a...Ch. 10 - Prob. 15RECh. 10 - Prob. 16RECh. 10 - Prob. 17RECh. 10 - What is the difference between an ActionEvent and...Ch. 10 - Prob. 19RECh. 10 - Prob. 20RECh. 10 - Prob. 21RECh. 10 - Prob. 22RECh. 10 - Prob. 23RECh. 10 - Prob. 24RECh. 10 - Add a method
public static Measurable...Ch. 10 - Prob. 2PECh. 10 - A person has a name and a height in centimeters....Ch. 10 - Add static methods largest and smallest to the...Ch. 10 - In the Sequence interface of Worked Example 10.1,...Ch. 10 - In Worked Example 10.1, add a default...Ch. 10 - In Worked Example 10.1, make the process method a...Ch. 10 - Add a method to the Data class that returns the...Ch. 10 - Prob. 9PECh. 10 - Modify the Coin class from Chapter 8 to have it...Ch. 10 - Repeat Exercise E10.9, making the Measurer into an...Ch. 10 - Repeat Exercise E10.9, making the Measurer an...Ch. 10 - Implement a class Bag that stores items...Ch. 10 - Prob. 14PECh. 10 - Reimplement Exercise E10.14 where the grid is...Ch. 10 - Prob. 16PECh. 10 - Enhance the ButtonViewer program so that it prints...Ch. 10 - Prob. 18PECh. 10 - Prob. 19PECh. 10 - Prob. 20PECh. 10 - Prob. 21PECh. 10 - Prob. 22PECh. 10 - Prob. 23PECh. 10 - Reimplement the program in Section 10.7.2,...Ch. 10 - Prob. 25PECh. 10 - Prob. 26PECh. 10 - Prob. 27PECh. 10 - Prob. 28PECh. 10 - Prob. 29PECh. 10 - Prob. 30PECh. 10 - Prob. 1PPCh. 10 - Write a class PrimeSequence that implements the...Ch. 10 - Prob. 3PPCh. 10 - Prob. 4PPCh. 10 - Prob. 5PPCh. 10 - Prob. 6PPCh. 10 - Prob. 7PPCh. 10 - Prob. 8PPCh. 10 - Prob. 9PPCh. 10 - Prob. 10PPCh. 10 - Prob. 11PPCh. 10 - Prob. 12PPCh. 10 - Prob. 13PPCh. 10 - Prob. 14PPCh. 10 - Prob. 15PPCh. 10 - Prob. 16PPCh. 10 - Prob. 17PPCh. 10 - Prob. 18PPCh. 10 - Prob. 19PPCh. 10 - Prob. 20PPCh. 10 - Prob. 21PPCh. 10 - Prob. 22PPCh. 10 - Prob. 23PPCh. 10 - Prob. 24PPCh. 10 - Prob. 25PPCh. 10 - Prob. 26PPCh. 10 - Prob. 27PP
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