Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
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Chapter 5.8, Problem 34SC
There is a scope error in the mystery method. How do you fix it?
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Note that you can only use recursion to solve Q1 and you cannot use any loop. You are free to add helper methods, but you are not allowed to change the method header.Question 1: Crazy seriesIn this session, you need to implement the crazy series method. In the crazy series, you will be given a starting number. Then, you need to times 2 for each number until the number is greater than 100. After the number is greater than 100, you need to divide 3 until we reach the number is less than 5. Note that the input number must be greater than 0, and you are not allowed to use loop here.For example,crazySeries(10) should return ArrayList [10.0, 20.0, 40.0, 80.0, 160.0, 53.333333333333336, 17.77777777777778, 5.9259259259259265, 1.9753086419753088]crazySeries(5) should return ArrayList [5.0, 10.0, 20.0, 40.0, 80.0, 160.0, 53.333333333333336, 17.77777777777778, 5.9259259259259265, 1.9753086419753088]crazySeries(1) should return ArrayList [1.0, 2.0, 4.0, 8.0, 16.0, 32.0, 64.0, 128.0,…
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Chapter 5 Solutions
Big Java Late Objects
Ch. 5.1 - Consider the method call Math.pow(3, 2). What are...Ch. 5.1 - What is the return value of the method call...Ch. 5.1 - The Math.ceil method in the Java standard library...Ch. 5.1 - It is possible to determine the answer to Self...Ch. 5.2 - What is the value of cubeVolume(3)?Ch. 5.2 - Prob. 6SCCh. 5.2 - Provide an alternate implementation of the body of...Ch. 5.2 - Declare a method squareArea that computes the area...Ch. 5.2 - Consider this method: public static int...Ch. 5.3 - What does this program print? Use a diagram like...
Ch. 5.3 - Prob. 11SCCh. 5.3 - What does this program print? Use a diagram like...Ch. 5.4 - Prob. 13SCCh. 5.4 - What does this method do? public static boolean...Ch. 5.4 - Implement the mystery method of Self Check 14 with...Ch. 5.5 - How do you generate the following printout, using...Ch. 5.5 - Prob. 17SCCh. 5.5 - Prob. 18SCCh. 5.5 - Prob. 19SCCh. 5.5 - The boxString method contains the code for...Ch. 5.6 - Consider the following statements: int...Ch. 5.6 - Consider this method that prints a page number on...Ch. 5.6 - Consider the following method that computes...Ch. 5.6 - The comment explains what the following loop does....Ch. 5.6 - In Self Check 24, you were asked to implement a...Ch. 5.7 - Explain how you can improve the intName method so...Ch. 5.7 - Prob. 27SCCh. 5.7 - What happens when you call intName(0)? How can you...Ch. 5.7 - Trace the method call intName(72), as described in...Ch. 5.7 - Prob. 30SCCh. 5.8 - Which lines are in the scope of the variable i...Ch. 5.8 - Which lines are in the scope of the parameter...Ch. 5.8 - The program declares two local variables with the...Ch. 5.8 - There is a scope error in the mystery method. How...Ch. 5.8 - Prob. 35SCCh. 5.9 - Consider this slight modification of the...Ch. 5.9 - Consider this recursive method: public static int...Ch. 5.9 - Consider this recursive method: public static int...Ch. 5.9 - Prob. 39SCCh. 5.9 - The intName method in Section 5.7 accepted...Ch. 5 - In which sequence are the lines of the Cubes.java...Ch. 5 - Write method headers for methods with the...Ch. 5 - Give examples of the following methods from the...Ch. 5 - Prob. 4RECh. 5 - Consider these methods: public static double...Ch. 5 - Prob. 6RECh. 5 - Design a method that prints a floating-point...Ch. 5 - Write pseudocode for a method that translates a...Ch. 5 - Describe the scope error in the following program...Ch. 5 - For each of the variables in the following...Ch. 5 - Prob. 11RECh. 5 - Perform a walkthrough of the intName method with...Ch. 5 - Consider the following method: public static int...Ch. 5 - Consider the following method that is intended to...Ch. 5 - Suppose an ancient civilization had constructed...Ch. 5 - Give pseudocode for a recursive method for...Ch. 5 - Give pseudocode for a recursive method that sorts...Ch. 5 - Write the following methods and provide a program...Ch. 5 - Write the following methods and provide a program...Ch. 5 - Prob. 4PECh. 5 - Prob. 5PECh. 5 - Prob. 6PECh. 5 - Prob. 7PECh. 5 - Prob. 8PECh. 5 - Write methods public static double...Ch. 5 - Write a recursive method public static String...Ch. 5 - Write a recursive method public static boolean...Ch. 5 - Use recursion to implement a method public static...Ch. 5 - Use recursion to determine the number of digits in...Ch. 5 - Write a method that computes the balance of a bank...Ch. 5 - Write a method that tests whether a file name...Ch. 5 - It is a well-known phenomenon that most people are...Ch. 5 - Prob. 3PPCh. 5 - Use recursion to compute an, where n is a positive...Ch. 5 - Leap years. Write a method public static boolean...Ch. 5 - In Exercise P3.13 you were asked to write a...Ch. 5 - Prob. 10PPCh. 5 - Write a program that reads two strings containing...Ch. 5 - Prob. 12PPCh. 5 - Write a program that reads words and arranges them...Ch. 5 - Prob. 14PPCh. 5 - Write a program that reads two fractions, adds...Ch. 5 - Write a program that prints the decimal expansion...Ch. 5 - Write a program that reads a decimal expansion...Ch. 5 - Write two methods public static void...Ch. 5 - Write a program that reads in the width and height...Ch. 5 - Repeat Exercise P5.19 with hexagonal circle...Ch. 5 - Postal bar codes. For faster sorting of letters,...Ch. 5 - Write a program that reads in a bar code (with :...Ch. 5 - Write a program that converts a Roman number such...Ch. 5 - A non-governmental organization needs a program to...Ch. 5 - Having a secure password is a very important...Ch. 5 - Prob. 30PPCh. 5 - Prob. 31PPCh. 5 - Electric wire, like that in the photo, is a...Ch. 5 - The drag force on a car is given by FD=12v2ACD...
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- Define Winter’s method?arrow_forwardHow can an incremental method improve things?arrow_forwardCreate, compile, and run a recursive program. Choose one of the labs listed below and program it. More details for the lab can be found in the first PowerPoint for Chapter 9. Make sure your code is recursive. You can think of recursive code this way: If you cut and paste a recursive method into another class, it should still run without problems. In other words, you cannot have any instance variables (class-level variables) that the method depends on. Choice 1 - boolean isPalindrome (String str) that returns true if the input string is a palindrome. Choice 2 - boolean find (string fullStr, string subStr) that tests whether the string subStr is a substring of fullStr Choice 3- int numDigits (int num) to determine the number of digits in the number num Choice 4 - double intPower (double x, int n) to compute x^n, where n is a positive integer and x is a double precision variable Choice 5-void printSubstr (String str) that prints all substrings of the input string.arrow_forward
- Question: Update Bresenham’s line (JAVA) method such that you can scale the line before drawing it. Normally, you pass two points and a Graphics’ object to draw line using Bresenham’s algorithm. Now you’ll add scaling factors in arguments for scaling as shown below. public void drawBresenhamLine(Point p1, Point p2, double Sx, double Sy, Graphics g) { //Write your code here } Note: If you use scaling method, then also write Scale method in solution.arrow_forwardConsider an alternative method.arrow_forwardExercising a challenge Read the footnote on the asList method for Arrays. Locate and read the sections on class variables and class methods later in this chapter. Explain how this works in your own words.arrow_forward
- Challenge exercise Read the footnote about the Arrays. asList method. Find and read the sections later in this chapter about class -variables and class methods. Explain in your own words how this works.arrow_forwardThank you! base on these methods, I want to write one more method Spec for method 5: A method to print a text-based histogram takes one parameter, an array of integers no return value image 2 is the example of expected output. Hint: basically it means base on the file, if number 20 appears once in the file, then I will print one star(*) after the number 20. I think we can get these information from method 4arrow_forwardThank you! Base on all the methods 1-4, I want to write another method: The spec for method 5 A method to print a text-based histogram takes one parameter, an array of integers no return value Image 1 is the example of the expected output Hint: it bacsically means: for example, if I have number 20 appears one time in my method, then we print a star(*) after number 20. I think we can use this method 4 to get this information.arrow_forward
- DO NOT COPY FROM OTHER WEBSITES Correct and detailed answerarrow_forwardWrite down only the methods that are required; testers are not requiredarrow_forwardFind the running time T(n) of the calculateSum method: Note that you are finding the running time, not the order of growth. We know the order of growth is O(n). List the steps leading to your calculation in case your answer is wrong but could get partial credit. Count all operations, including loop controls, declarations, updates, return, etc. i++ should be considered two statements (an addition and assignment). Accessing a value from an array does not need to be counted as a step. For example, numbers[i] = x is 1 statement (an assignment), not 2 statements. public static int calculateSum(int[] numbers) { int sum = 0; for(int i=0; i<numbers.length; i++) { sum += numbers[i]; } return sum; }arrow_forward
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