STARTING OUT W/PROGRAM.LOGIC...-TEXT
5th Edition
ISBN: 2810022369454
Author: GADDIS
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 3SA
What is a file’s read position? Where is the read position when a file is first opened for reading?
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1.[30 pts] Computers generate color pictures on a video screen or liquid crystal display by
mixing three different colors of light: red, green, and blue. Imagine a simple scheme, with
three different lights, each of which can be turned on or off, projecting onto a glass screen:
We can create eight different colors based on the absence (0) or presence (1) of light
sources R,G and B:
R
G
B
Color
0
0
0
Black
0
0
1
Blue
0
1
0
Green
0
1
1
Cyan
1
0
0
Red
1
0
1
Magenta
1
1
1
0
Yellow
1
White
1
Each of these colors can be represented as a bit vector of length 3, and we can apply
Boolean operations to them.
a. The complement of a color is formed by turning off the lights that are on and turning
on the lights that are off. What would be the complement of each of the eight colors
listed above?
b. Describe the effect of applying Boolean operations on the following colors:
Λ
1. Red(100) ^ Magenta(101)= Blue(001)
2. Bue(001) | Green(010)=
3. Yellow(100) & Cyan(011)=
2.[30 pts] Perform the following…
D. S. Malik, Data Structures Using C++, 2nd Edition, 2010
Methods (Ch6) - Review
1. (The MyRoot method) Below is a manual implementation of the Math.sqrt() method in Java.
There are two methods, method #1 which calculates the square root for positive integers, and
method #2, which calculates the square root of positive doubles (also works for integers).
public class SquareRoot {
public static void main(String[] args) {
}
// implement a loop of your choice here
// Method that calculates the square root of integer variables
public static double myRoot(int number) {
double root;
root=number/2;
double root old;
do {
root old root;
root (root_old+number/root_old)/2;
} while (Math.abs(root_old-root)>1.8E-6);
return root;
}
// Method that calculates the square root of double variables
public static double myRoot(double number) {
double root;
root number/2;
double root_old;
do {
root old root;
root (root_old+number/root_old)/2;
while (Math.abs (root_old-root)>1.0E-6);
return root;
}
}
Program-it-Yourself: In the main method, create a program that…
Chapter 10 Solutions
STARTING OUT W/PROGRAM.LOGIC...-TEXT
Ch. 10.1 - Where are files normally stored?Ch. 10.1 - What is an output file?Ch. 10.1 - What is an input file?Ch. 10.1 - What three steps must be taken by a program when...Ch. 10.1 - Prob. 10.5CPCh. 10.1 - Prob. 10.6CPCh. 10.1 - When writing a program that performs an operation...Ch. 10.1 - In most programming languages, if a file already...Ch. 10.1 - What is the purpose of opening a file?Ch. 10.1 - What is the purpose of closing a file?
Ch. 10.1 - Prob. 10.11CPCh. 10.1 - Prob. 10.12CPCh. 10.1 - What is a files read position? Initially, where is...Ch. 10.1 - In what mode do you open a file if you want to...Ch. 10.2 - Prob. 10.15CPCh. 10.2 - What is the purpose of the eof function?Ch. 10.2 - Is it acceptable for a program to attempt to read...Ch. 10.2 - Prob. 10.18CPCh. 10.2 - Which of the following loops would you use to read...Ch. 10.4 - Prob. 10.20CPCh. 10.4 - Prob. 10.21CPCh. 10.4 - Prob. 10.22CPCh. 10 - A file that data is written to is known as a(n) a....Ch. 10 - A file that data is read from is known as a(n) a....Ch. 10 - Before a file can be used by a program, it must be...Ch. 10 - When a program is finished using a file, it should...Ch. 10 - The contents of this type of file can be viewed in...Ch. 10 - This type of file contains data that has not been...Ch. 10 - When working with this type of file, you access...Ch. 10 - When working with this type of file, you can jump...Ch. 10 - This is a small holding section in memory that...Ch. 10 - Prob. 10MCCh. 10 - This is a character or set of characters that...Ch. 10 - This marks the location of the next item that will...Ch. 10 - When a file is opened in this mode, data will be...Ch. 10 - The expression NOT eof (myFi1e) is equivalent to...Ch. 10 - This is a single piece of data within a record. a....Ch. 10 - When working with a sequential access file, you...Ch. 10 - In most languages, when you open an output file...Ch. 10 - The process of opening a file is only necessary...Ch. 10 - Prob. 4TFCh. 10 - Prob. 5TFCh. 10 - When a file that already exists is opened in...Ch. 10 - In control break logic, the program performs some...Ch. 10 - Describe the three steps that must be taken when a...Ch. 10 - Why should a program close a file when its...Ch. 10 - What is a files read position? Where is the read...Ch. 10 - If an existing file is opened in append mode, what...Ch. 10 - In most languages, if a file does not exist and a...Ch. 10 - What is the purpose of the eof function that was...Ch. 10 - What is control break logic?Ch. 10 - Design a program that opens an output file with...Ch. 10 - Design a program that opens the my_name.dat file...Ch. 10 - Prob. 3AWCh. 10 - Design an algorithm that does the following: opens...Ch. 10 - Modify the algorithm that you designed in question...Ch. 10 - Write pseudocode that opens an output file with...Ch. 10 - Prob. 7AWCh. 10 - A file exists on the disk named students.dat. The...Ch. 10 - Why doesn't the following pseudocode module work...Ch. 10 - File Display Assume that a file containing a...Ch. 10 - Item Counter Assume that a file containing a...Ch. 10 - Sum of Numbers Assume that a file containing a...Ch. 10 - Average of Numbers Assume that a file containing a...Ch. 10 - Largest Number Assume that a file containing a...Ch. 10 - Golf Scores The Springfork Amateur Golf Club has a...Ch. 10 - Sales Report Brewster's Used Cars, Inc. employs...Ch. 10 - Lowest and Highest Gas Prices Assume that you have...Ch. 10 - Average Steps Taken A Personal Fitness Tracker is...
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