Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
4th Edition
ISBN: 9780134787961
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Textbook Question
Chapter 17.1, Problem 17.4CP
Assume we have used the statement shown in Checkpoint 17.3 to instantiate the ArrayList class. If we attempt to store an object that is not of the allowable type in the ArrayList, will we see an error message at compile time or at runtime?
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2. Signed Integers
Unsigned binary numbers work for natural numbers, but many calculations use negative
numbers as well. To deal with this, a number of different methods have been used to represent
signed numbers, but we will focus on two's complement, as it is the standard solution for
representing signed integers.
2.1 Two's complement
• Most significant bit has a negative value, all others are positive. So, the value of an n-digit
-2
two's complement number can be written as: Σ2 2¹ di 2n-1 dn
• Otherwise exactly the same as unsigned integers.
i=0
-
• A neat trick for flipping the sign of a two's complement number: flip all the bits (0 becomes 1,
or 1 becomes 0) and then add 1 to the least significant bit.
• Addition is exactly the same as with an unsigned number.
2.2 Exercises
For questions 1-3, answer each one for the case of a two's complement number and an
unsigned number, indicating if it cannot be answered with a specific representation.
1. (15 pts) What is the largest integer…
Chapter 17 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Ch. 17.1 - Prob. 17.1CPCh. 17.1 - When ArrayList is used as a non-generic class, why...Ch. 17.1 - Suppose we use the following statement to...Ch. 17.1 - Assume we have used the statement shown in...Ch. 17.2 - Prob. 17.5CPCh. 17.2 - Prob. 17.6CPCh. 17.2 - Prob. 17.7CPCh. 17.2 - Prob. 17.8CPCh. 17.3 - Prob. 17.9CPCh. 17.3 - Prob. 17.10CP
Ch. 17.3 - Prob. 17.11CPCh. 17.3 - Prob. 17.12CPCh. 17.3 - Prob. 17.13CPCh. 17.3 - Prob. 17.14CPCh. 17.4 - Prob. 17.15CPCh. 17.5 - Prob. 17.16CPCh. 17.5 - Prob. 17.17CPCh. 17.6 - Prob. 17.18CPCh. 17.6 - Prob. 17.19CPCh. 17.6 - Prob. 17.20CPCh. 17.8 - Prob. 17.21CPCh. 17.8 - Prob. 17.22CPCh. 17.9 - Prob. 17.23CPCh. 17.9 - During the process of erasure, when the compiler...Ch. 17.9 - Prob. 17.25CPCh. 17 - Prob. 1MCCh. 17 - Prob. 2MCCh. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Prob. 7MCCh. 17 - Prob. 8MCCh. 17 - Prob. 9MCCh. 17 - The process used by the Java compiler to remove...Ch. 17 - True or False: It is better to discover an error...Ch. 17 - Prob. 12TFCh. 17 - True or False: Type parameters must be single...Ch. 17 - Prob. 14TFCh. 17 - Prob. 15TFCh. 17 - True or False: You cannot create an array of...Ch. 17 - Prob. 17TFCh. 17 - Prob. 18TFCh. 17 - Prob. 1FTECh. 17 - Assume the following is a method header in a...Ch. 17 - public class MyClassT { public static void...Ch. 17 - public class PointT extends Number super Integer {...Ch. 17 - Assume there is a class named Customer. Write a...Ch. 17 - Assume names references an object of the...Ch. 17 - Prob. 3AWCh. 17 - Prob. 4AWCh. 17 - Prob. 5AWCh. 17 - Prob. 6AWCh. 17 - Prob. 7AWCh. 17 - Prob. 1SACh. 17 - Look at the following method header: public T...Ch. 17 - Prob. 3SACh. 17 - Do generic types exist at the bytecode level?Ch. 17 - Prob. 5SACh. 17 - When the compiler encounters a class, interface,...Ch. 17 - Prob. 1PCCh. 17 - Prob. 2PCCh. 17 - Prob. 3PCCh. 17 - Prob. 4PCCh. 17 - Prob. 5PCCh. 17 - Prob. 6PCCh. 17 - Prob. 7PC
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