3rd Edition

ISBN: 9780133252811

Author: Y. Daniel Liang

Publisher: Prentice Hall

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Chapter 4, Problem 7CP

How do you display the characters \ and "?

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Chapter 4, Problem 6CP

Chapter 4, Problem 8CP

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7. See the code below and solve the following. public class Test { public static void main(String[] args) { int result = 0; } result = fn(2,3); System.out.println("The result is: + result); // fn(x, 1) = x // fn(x, y) = fn(x, y-1) + 2, when y>1 public static int fn(int x, int y) { if (x <= 1) return x; else return fn(x, y-1) + 2; } } 7-1. This program has a bug that leads to infinite recursion. Modify fn(int x, int y) method to fix the problem. (2 point) 7-2. Manually trace the recursive call, fn(2,3) and show the output (step by step). (2 point) 7-3. Can you identify the Base Case in recursive method fn(int x, int y)? (1 point)

6. See the code below and solve the following. import java.io.*; public class DataStream { } public static void main(String[] args) } DataOutputStream output = new DataOutputStream(new FileOutputStream("temp.dat")); output.writeUTF("Book1"); output.writeInt(85); output.writeUTF("Book2"); output.writeInt(125); output.writeUTF("Book3"); output.writeInt(70); output.close(); // ToDo: Read all data from temp.dat and print the data to the standard output (monitor) 6-1. This program has a compile error, and the message is “Unhandled exception type FileNotFoundException". How do you fix this error? (1 point) 6-2. Is FileNotFoundException a checked exception or an unchecked exception? (1 point) 6-3. What is the difference between checked exception and unchecked exception? (1 point) 6-4. Please complete the above program by reading all data from temp.dat and print the data to the standard output (monitor) by using System.out.print, System.out.println or System.out.printf method. (2 points)

Write a program that reads a list of integers from input and determines if the list is a palindrome (values are identical from first to last and last to first). The input begins with an integer indicating the length of the list that follows. Assume the list will contain a maximum of 20 integers. Output "yes" if the list is a palindrome and "no" otherwise. The output ends with a newline. Hints: - use a for loop to populate the array based on the specified size (the first number entered) - use a for loop to check first value with last value, second value with second from end, etc. - if the values do not match, set a Boolean variable to flag which statement to output (yes or no) Ex: If the input is (remember to include spaces between the numbers): 6 1 5 9 9 5 1 the output is: yes Ex: If the input is: 5 1 2 3 4 5 the output is: C++ coding

Chapter 4 Solutions

Introduction to Programming with C++

Ch. 4 - Prob. 1CP Ch. 4 - Prob. 2CP Ch. 4 - Write a statement that converts 47 degrees to...Ch. 4 - Write a statement that converts /7 to an angle in...Ch. 4 - Use console print statements to determine the...Ch. 4 - Prob. 6CP Ch. 4 - How do you display the characters \ and "?Ch. 4 - Show the printout of the following code:...Ch. 4 - Prob. 9CP Ch. 4 - Prob. 10CP

Ch. 4 - If the input for a starting character and an...Ch. 4 - If you run Listing 4.4 GuessBirthday.cpp with...Ch. 4 - Which function do you use to test whether a...Ch. 4 - Which function do you use to convert a letter to...Ch. 4 - Prob. 15CP Ch. 4 - Prob. 16CP Ch. 4 - Prob. 17CP Ch. 4 - Prob. 18CP Ch. 4 - Write a statement that changes the first character...Ch. 4 - Show the output of the following code:...Ch. 4 - Prob. 21CP Ch. 4 - To use stream manipulators, which header file must...Ch. 4 - Show the output of the following statements....Ch. 4 - Show the output of the following statements:...Ch. 4 - Show the output of the following statements;...Ch. 4 - Show the output of the following statements:...Ch. 4 - Prob. 27CP Ch. 4 - How do you create an object for reading data from...Ch. 4 - Prob. 29CP Ch. 4 - What happens if the file already exists when you...Ch. 4 - (Geometry: area of a pentagon) Write a program...Ch. 4 - (Geometry: great circle distance) The great circle...Ch. 4 - (Geography: estimate areas) Find the GPS locations...Ch. 4 - (Geometry: area of a hexagon) The area of a...Ch. 4 - Prob. 5PE Ch. 4 - (Random point on a circle) Write a program that...Ch. 4 - Prob. 7PE Ch. 4 - (Find the character of an ASCII code) Write a...Ch. 4 - Prob. 9PE Ch. 4 - (Vowel or consonant?) Assume letters...Ch. 4 - Prob. 11PE Ch. 4 - (Convert letter grade to number) Write a program...Ch. 4 - (Hex to binary) Write a program that prompts the...Ch. 4 - Prob. 14PE Ch. 4 - (Phone key pads) The international standard...Ch. 4 - Prob. 16PE Ch. 4 - Prob. 17PE Ch. 4 - Prob. 18PE Ch. 4 - (Order three cities) Write a program that prompts...Ch. 4 - Prob. 20PE Ch. 4 - (Student major and status) Write a program that...Ch. 4 - Prob. 22PE Ch. 4 - (Check SSN) Write a program that prompts the user...

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