Introduction to Java Programming and Data Structures Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134700144
Author: Liang
Publisher: PEARSON
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Chapter 7, Problem 7.21PE
(Sum integers) Write a
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I would like to get help to resolve the following case
Last Chance Securities
The IT director opened the department staff meeting today by saying, "I've got some good news and
some bad news. The good news is that management approved the payroll system project this morning.
The new system will reduce clerical time and errors, improve morale in the payroll department, and avoid
possible fines and penalties for noncompliance. The bad news is that the system must be installed by
January 1st in order to meet new federal reporting rules, all expenses from now on must be approved in
advance, the system should have a modular design if possible, and the vice president of finance would
like to announce the new system in a year-end report if it is ready by mid-December."
Tasks
1. Why is it important to define the project scope? How would you define the scope of the payroll
project in this case?
2. Review each constraint and identify its characteristics: present versus future, internal versus exter-
nal, and mandatory versus desirable.
3. What…
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 7 Solutions
Introduction to Java Programming and Data Structures Comprehensive Version (11th Edition)
Ch. 7.2 - Prob. 7.2.1CPCh. 7.2 - Prob. 7.2.2CPCh. 7.2 - What is the output of the following code? int x =...Ch. 7.2 - Indicate true or false for the following...Ch. 7.2 - Which of the following statements are valid? a....Ch. 7.2 - Prob. 7.2.6CPCh. 7.2 - What is the array index type? What is the lowest...Ch. 7.2 - Write statements to do the following: a. Create an...Ch. 7.2 - What happens when your program attempts to access...Ch. 7.2 - Identify and fix the errors in the following code:...
Ch. 7.2 - What is the output of the following code? 1....Ch. 7.4 - Will the program pick four random cards if you...Ch. 7.5 - Use the arraycopy method to copy the following...Ch. 7.5 - Prob. 7.5.2CPCh. 7.7 - Suppose the following code is written to reverse...Ch. 7.8 - Prob. 7.8.1CPCh. 7.8 - Prob. 7.8.2CPCh. 7.9 - Prob. 7.9.1CPCh. 7.9 - Prob. 7.9.2CPCh. 7.10 - If high is a very large integer such as the...Ch. 7.10 - Prob. 7.10.2CPCh. 7.10 - Prob. 7.10.3CPCh. 7.11 - Prob. 7.11.1CPCh. 7.11 - How do you modify the selectionSort method in...Ch. 7.12 - What types of array can be sorted using the...Ch. 7.12 - To apply java.util.Arrays.binarySearch (array,...Ch. 7.12 - Show the output of the following code: int[] list1...Ch. 7.13 - This book declares the main method as public...Ch. 7.13 - Show the output of the following program when...Ch. 7 - (Assign grades) Write a program that reads student...Ch. 7 - (Reverse the numbers entered) Write a program that...Ch. 7 - (Count occurrence of numbers) Write a program that...Ch. 7 - (Analyze scores) Write a program that reads an...Ch. 7 - (Print distinct numbers) Write a program that...Ch. 7 - (Revise Listing 5.1 5, PrimeNumber.java) Listing...Ch. 7 - (Count single digits) Write a program that...Ch. 7 - (Average an array) Write two overloaded methods...Ch. 7 - (Find the smallest element) Write a method that...Ch. 7 - Prob. 7.10PECh. 7 - (Statistics: compute deviation) Programming...Ch. 7 - (Reverse an array) The reverse method in Section...Ch. 7 - Prob. 7.13PECh. 7 - Prob. 7.14PECh. 7 - 7 .15 (Eliminate duplicates) Write a method that...Ch. 7 - (Execution time) Write a program that randomly...Ch. 7 - Prob. 7.17PECh. 7 - (Bubble sort) Write a sort method that uses the...Ch. 7 - (Sorted?) Write the following method that returns...Ch. 7 - (Revise selection sort) In Listing 7 .8, you used...Ch. 7 - (Sum integers) Write a program that passes an...Ch. 7 - (Find the number of uppercase letters in a string)...Ch. 7 - (Game: locker puzzle) A school bas 100 lockers and...Ch. 7 - (Simulation: coupon collectors problem) Coupon...Ch. 7 - (Algebra: solve quadratic equations) Write a...Ch. 7 - (Strictly identical arrays) The arrays 1ist1 and...Ch. 7 - (Identical arrays) The arrays 1ist1 and 1ist2 are...Ch. 7 - (Math: combinations) Write a program that prompts...Ch. 7 - (Game: pick four cards) Write a program that picks...Ch. 7 - (Pattern recognition: consecutive four equal...Ch. 7 - (Merge two sorted Lists) Write the following...Ch. 7 - (Partition of a list) Write the following method...Ch. 7 - Prob. 7.33PECh. 7 - (Sort characters in a string) Write a method that...Ch. 7 - (Game: hangman) Write a hangman game that randomly...Ch. 7 - (Game: Eight Queens) The classic Eight Queens...Ch. 7 - Prob. 7.37PE
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- can u solve this questionarrow_forward1. Unsigned Integers If we have an n-digit unsigned numeral dn-1d n-2...do in radix (or base) r, then the value of that numeral is n−1 r² di Σi=0 which is basically saying that instead of a 10's or 100's place we have an r's or r²'s place. For binary, decimal, and hex r equals 2, 10, and 16, respectively. Just a reminder that in order to write down a large number, we typically use the IEC or SI prefixing system: IEC: Ki = 210, Mi = 220, Gi = 230, Ti = 240, Pi = 250, Ei = 260, Zi = 270, Yi = 280; SI: K=103, M = 106, G = 109, T = 10¹², P = 1015, E = 10¹8, Z = 1021, Y = 1024. 1.1 Conversions a. (15 pts) Write the following using IEC prefixes: 213, 223, 251, 272, 226, 244 21323 Ki8 Ki 223 23 Mi 8 Mi b. (15 pts) Write the following using SI prefixes: 107, 10¹7, 10¹¹, 1022, 1026, 1015 107 10¹ M = 10 M = 1017102 P = 100 P c. (10 pts) Write the following with powers of 10: 7 K, 100 E, 21 G 7 K = 7*10³arrow_forwardanswer shoul avoid using AI and should be basic and please explainarrow_forward
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