
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
11th Edition
ISBN: 9780134743356
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3.1E
(Instance Variables) Explain the purpose of an instance variable.
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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))
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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 3 Solutions
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
Ch. 3 - Fill in the blanks in each of the following: Each...Ch. 3 - Fill in the blanks in each of the following:...Ch. 3 - Fill in the blanks in each of the following:...Ch. 3 - Fill in the blanks in each of the following: Each...Ch. 3 - Prob. 1.5SRECh. 3 - Fill in the blanks in each of the following: Java...Ch. 3 - Prob. 1.7SRECh. 3 - Prob. 1.8SRECh. 3 - Prob. 1.9SRECh. 3 - Prob. 1.10SRE
Ch. 3 - Prob. 1.11SRECh. 3 - Prob. 1.12SRECh. 3 - Fill in the blanks in each of the following: A(n)...Ch. 3 - Prob. 1.14SRECh. 3 - Prob. 1.15SRECh. 3 - Prob. 1.16SRECh. 3 - Fill in the blanks in each of the following: Types...Ch. 3 - Prob. 2.1SRECh. 3 - Prob. 2.2SRECh. 3 - State whether each of the following is true or...Ch. 3 - Prob. 2.4SRECh. 3 - Prob. 2.5SRECh. 3 - Prob. 2.6SRECh. 3 - State whether each of the following is true or...Ch. 3 - State whether each of the following is true or...Ch. 3 - Prob. 2.9SRECh. 3 - Prob. 2.10SRECh. 3 - State whether each of the following is true or...Ch. 3 - Prob. 3.1SRECh. 3 - Prob. 4.1SRECh. 3 - (Keyword new) Whats the purpose of keyword new?...Ch. 3 - Prob. 2.1ECh. 3 - (Instance Variables) Explain the purpose of an...Ch. 3 - Prob. 4.1ECh. 3 - (Using a Class without Importing It) Explain how a...Ch. 3 - (set and get Methods) Explain why a class might...Ch. 3 - Prob. 7.1ECh. 3 - (Invoice Class) Create a class called Invoice that...Ch. 3 - (Employee Class) Create a class called Employee...Ch. 3 - Prob. 10.1ECh. 3 - (Target-Heart-Rate Calculator) While exercising,...Ch. 3 - (Computerization of Health Records) A health-care...
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- In the following code segment, mon and tue are properly declared String variables. String strl-mon.substring(9. mon.indexOf(" "). String str2-tue.substring(tue.indexOf(" ") + 1). System.out.println(strl+and+str2): க 21 Mark for Review For which of the following values of mon and tue will the code segment print "cloudy and foggy"? mon tue "cloudy today" "foggy tomorrow" mon tue "cloudy today" "tomorrow foggy" mon tue "today cloudy" "foggy tomorrow" mon tue "today cloudy" "tomorrow foggy"arrow_forwardG Consider the following code segment, which is intended to assign to num a random integer value between min and max, inclusive, each with an equal chance of being assigned to num. Assume that min and max are integer variables and that the value of max is greater than the value of min. 24 Mark for Review Which of the following can replace /* missing code */ so that the code segment works as intended? double rn = Math.random();_ int num = /* missing code */ ;_ D (int) (rn * max) + min ABC (A) (int) (rn * (max- min)) + min (B (int) (rn * (max min)) + 1 (int) (rn * (max min + 1)) + minarrow_forwardWrite the truth table for each of the following logic functions: (a) FX Y+X'. Y'. Z (b) FW' X + Y' · Z' + X' · Z (c) F=W+X' · (Y' + Z) . . (d) F A B+ B' C+C' D + D' A .arrow_forward
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Introduction to Variables; Author: Neso Academy;https://www.youtube.com/watch?v=fO4FwJOShdc;License: Standard YouTube License, CC-BY