
Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Textbook Question
Chapter 10.4, Problem 15STQ
What import statement(s) do you use when creating a binary file?
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Consider the following statement, which is intended to assign the value of the expression,
the variable result Assume that the double variables. x-ya and b have been properly
declared and initialized.
(xy)
to
double result = missing code /:
17
Mark for Review
Which of the following can replace / missing code / so that the statement works as intended?
Math.sqrt((x + y)
2/ Math.abs(a, b))
Math.sqrt((x + y) 2/ Math.abs(a - b))
Math.sqrt(Math.pow(x + y, 2) / Math. abs(a, b))
Math.sqrt(Math.pow(x + y, 2) / Math.abs (a - b))
Consider the following code segment, which is intended to print the digits of the two-digit int number
num in reverse order. For example, if num has the value 75, the code segment should print 57.
Assume that num has been properly declared and initialized.
/missing code */
System.out.print (onesDigit);
System.out.print (tensDigit);
14
Mark for Review
Which of the following can be used to replace / missing code so that the code
segment works as intended?
int onesDigit num 10;
int tensDigit num / 10;
int onesDigit- num / 10;
int tensDigit num 10;
int onesDigit -10/num;
int tensDigit 10 num;
-Undo
int onesDigit
num
100;
Undo
int tensDigit-num / 100;
The following code segment is intended to round yal to the nearest integer and print the result
double val--0.7
int roundedVal (int) (val +0.51
System.out.println(roundedValu
25
Mark for Review
Which of the following best describes the behavior of the code segment?
The code segment does not work as intended because the expression
(val +0.5) should be cast to a double instead of an int
The code segment does not work as intended because val should be cast
to an int before 0.5 is added to it.
Highlights & Notes
Reference
Undo
Undo
The code segment does not work as intended because the expression
-Unda
positive
ר .
Chapter 10 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 10.1 - Why would anybody write a program that sends its...Ch. 10.1 - When we discuss input, are we referring to data...Ch. 10.1 - What is the difference between a text file and a...Ch. 10.2 - Write some code that will create a stream named...Ch. 10.2 - Prob. 5STQCh. 10.2 - Prob. 6STQCh. 10.2 - Prob. 7STQCh. 10.2 - Write some code that will create a stream named...Ch. 10.2 - Suppose you run a program that writes to the text...Ch. 10.2 - Prob. 10STQ
Ch. 10.3 - Prob. 11STQCh. 10.4 - Write some Java code to create an output stream of...Ch. 10.4 - Give three statements that will write the values...Ch. 10.4 - Give a statement that will close the stream toFile...Ch. 10.4 - What import statement(s) do you use when creating...Ch. 10.4 - Prob. 16STQCh. 10.4 - Give three statements that will read three numbers...Ch. 10.4 - Give a statement that will close the stream...Ch. 10.4 - Can you use writeInt to write a number to a file...Ch. 10.4 - Can you use readUTF to read a string from a text...Ch. 10.4 - Prob. 21STQCh. 10.4 - Prob. 22STQCh. 10.4 - Does the class FileInputStream have a method named...Ch. 10.4 - Does the class FileOutputStream have a constructor...Ch. 10.4 - Does the class ObjectOutputStream have a...Ch. 10.4 - Prob. 26STQCh. 10.4 - Suppose that a binary file contains exactly three...Ch. 10.4 - The following code appears in the program in...Ch. 10.4 - Prob. 29STQCh. 10.5 - Prob. 30STQCh. 10.5 - Prob. 31STQCh. 10.5 - Prob. 32STQCh. 10.5 - Prob. 33STQCh. 10.6 - Prob. 34STQCh. 10.6 - Prob. 35STQCh. 10 - Write a program that will write the Gettysburg...Ch. 10 - Modify the program in the previous exercise so...Ch. 10 - Write some code that asks the user to enter either...Ch. 10 - Write a program that will record the purchases...Ch. 10 - Modify the class LapTimer, as described in...Ch. 10 - Write a class TelephoneNumber that will hold a...Ch. 10 - Write a class contactInfo to store contact...Ch. 10 - Write a program that reads every line in a text...Ch. 10 - Repeat the previous exercise, but write the new...Ch. 10 - Write a program that will make a copy of a text...Ch. 10 - Suppose you are given a text file that contains...Ch. 10 - Suppose that you have a binary file that contains...Ch. 10 - Suppose that we want to store digitized audio...Ch. 10 - Write a program RecoverSignal that will read the...Ch. 10 - Even though a binary file is not a text file, it...Ch. 10 - Write a program that searches a file of numbers...Ch. 10 - Write a program that reads a file of numbers of...Ch. 10 - The following is an old word puzzle: Name a common...Ch. 10 - The Social Security Administration maintains an...Ch. 10 - The following is a list of scores for a game....Ch. 10 - Write a program that checks a text file for...Ch. 10 - Prob. 5PPCh. 10 - Prob. 6PPCh. 10 - Revise the class Pet, as shown in Listing 6.1 of...Ch. 10 - Write a program that reads records of type Pet...Ch. 10 - Prob. 12PP
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