Starting Out with Java: From Control Structures through Objects (6th Edition)
6th Edition
ISBN: 9780133957051
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
thumb_up100%
Chapter 16, Problem 5AW
What will the following
public class ReviewQuestion5
{
public static void main(String[] args)
{
int x = 10;
System.out.println(myMethod(x));
}
public static int myMethod(int num)
{
if (num <= 0)
return 0;
else
return myMethod(num - 1) + num;
}
}
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What will the following program display?public class Checkpoint{public static void main(String[] args){int num1 = 99;double num2 = 1.5;System.out.println(num1 + " " + num2);myMethod(num1, num2);System.out.println(num1 + " " + num2);}public static void myMethod(int i, double d){System.out.println(i + " " + d);i = 0;d = 0.0;System.out.println(i + " " + d);}}
Please help debug this: Debugging Exercise 4-3, Farrell, Joyce, Java Programming, 9th edition, Cengage Learning
public class DebugBox
{
private int width;
private int length;
private int height;
private FixDebugBox()
{
length = 1;
width = 1;
height = 1;
}
public DebugBox(int width, int length, int height)
{
width = width;
length = length;
height = height;
}
public void showData()
{
System.out.println("Width: " + width + " Length: " + length + " Height: " + height);
}
public double getVolume()
{
double vol = length - width - height;
return vol;
}
}
public class LabProgram {
public static void main(String args[]) {
Course course = new Course();
String first; // first name
String last; // last name
double gpa; // grade point average
first = "Henry";
last = "Cabot";
gpa = 3.5;
course.addStudent(new Student(first, last, gpa)); // Add 1st student
first = "Brenda";
last = "Stern";
gpa = 2.0;
course.addStudent(new Student(first, last, gpa)); // Add 2nd student
first = "Jane";
last = "Flynn";
gpa = 3.9;
course.addStudent(new Student(first, last, gpa)); // Add 3rd student
first = "Lynda";
last = "Robison";
gpa = 3.2;
course.addStudent(new Student(first, last, gpa)); // Add 4th student
course.printRoster();
}
}
// Class representing a student
public class Student {
private String first; // first name
private String last; // last name
private double gpa; // grade point average…
Chapter 16 Solutions
Starting Out with Java: From Control Structures through Objects (6th Edition)
Ch. 16.2 - It is said that a recursive algorithm has more...Ch. 16.2 - Prob. 16.2CPCh. 16.2 - What is a recursive case?Ch. 16.2 - What causes a recursive algorithm to stop calling...Ch. 16.2 - What is direct recursion? What is indirect...Ch. 16 - Prob. 1MCCh. 16 - This is the part of a problem that can be solved...Ch. 16 - This is the part of a problem that is solved with...Ch. 16 - This is when a method explicitly calls itself. a....Ch. 16 - Prob. 5MC
Ch. 16 - Prob. 6MCCh. 16 - True or False: An iterative algorithm will usually...Ch. 16 - True or False: Some problems can be solved through...Ch. 16 - True or False: It is not necessary to have a base...Ch. 16 - True or False: In the base case, a recursive...Ch. 16 - Find the error in the following program: public...Ch. 16 - Prob. 1AWCh. 16 - Prob. 2AWCh. 16 - What will the following program display? public...Ch. 16 - Prob. 4AWCh. 16 - What will the following program display? public...Ch. 16 - Convert the following iterative method to one that...Ch. 16 - Write an iterative version (using a loop instead...Ch. 16 - What is the difference between an iterative...Ch. 16 - What is a recursive algorithms base case? What is...Ch. 16 - What is the base case of each of the recursive...Ch. 16 - What type of recursive method do you think would...Ch. 16 - Which repetition approach is less efficient: a...Ch. 16 - When recursion is used to solve a problem, why...Ch. 16 - How is a problem usually reduced with a recursive...Ch. 16 - Prob. 1PCCh. 16 - isMember Method Write a recursive boolean method...Ch. 16 - String Reverser Write a recursive method that...Ch. 16 - maxElement Method Write a method named maxElement,...Ch. 16 - Palindrome Detector A palindrome is any word,...Ch. 16 - Character Counter Write a method that uses...Ch. 16 - Recursive Power Method Write a method that uses...Ch. 16 - Sum of Numbers Write a method that accepts an...Ch. 16 - Ackermarms Function Ackermanns function is a...Ch. 16 - Recursive Population Class In Programming...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Write a static recursive method that returns the sum of the integers in the array of int values passed to it as...
Java: An Introduction to Problem Solving and Programming (8th Edition)
(Arithmetic, Largest Value and Smallest Value) Write a program that inputs three different integers from the ke...
C How to Program (8th Edition)
Total Purchase A customer in a store is purchasing five items. The prices of the five items are as follows: Pri...
Starting Out with C++ from Control Structures to Objects (8th Edition)
Write out a constructor for a class called Module. The constructor should take a single parameter of type Strin...
Objects First with Java: A Practical Introduction Using BlueJ (6th Edition)
What information is contained in the state of a process?
Computer Science: An Overview (12th Edition)
Rock, Paper, Scissors Game Write a program that lets the user play the game of Rock, Paper, Scissors against th...
Starting Out with Java: Early Objects (6th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Trace and document every step of execution of the following program: public class Trace { public static void main(String[] args) { int[] num = {1, 3, 6, 9, 12 }; for (int i = 4; i >= 0; i--) { num[i] +=1; } num[0] *=num[4]; } }arrow_forwardpublic class MysteryReturn2 {3 public static void main(String[] args)4 {5 int x = 1;6 int y = 2;7 int z = 3;89 z = mystery(x, z, y);10 System.out.println(x + " " + y + " " + z);11 }1213 public static int mystery(int c, a, int b);14 {15 c--;16 a = 2 * b + c;17 b = a - 1;18 System.out.println(b + " " + c);1920 return a;21 }22 } 1. Line 13 contains 2 errors. What are they? 2. Rewrite line 13 with the errors identifed in Question 1 corrected.arrow_forwardQ27 for java programing: public static void main(String[] args) { Dog[] dogs = { new Dog(), new Dog()}; for(int i = 0 ; i < dogs.length; i++) dogs[i].wo(); Cat[] cats = { new Cat(),new Cat(),new Cat()}; for(int i = 0 ; i < cats.length; i++) cats[i].me(); System.out.print(Dog.getCount()+" woofs and"); System.out.println(Cat.getCount()+" mews"); System.out.println("=====>>>"+decision()); } class Counter { private static int count; public static void inc() { count++;} public static int getCount() {return count;} } class Dog extends Counter{ public Dog(){} public void wo(){inc();} } class Cat extends Counter{ public Cat(){} public void me( ){inc();} } The Correct answer: public static void main(String[] args) { Dog[] dogs = { new Dog(), new Dog()}; for(int i = 0 ; i < dogs.length; i++) dogs[i].wo(); Cat[] cats = { new…arrow_forward
- The String class is provided in the Java library.Provide your own implementation for the following methods (name the newclass MyString1):public MyString1(char[] chars);public char charAt(int index);public int length();public MyString1 substring(int begin, int end);public MyString1 toLowerCase();public boolean equals(MyString1 s);public static MyString1 valueOf(int i);arrow_forwardplease write it in C language. import java.util.*; public class EightQDfs { final int X = 4; void dispSol(int brd[][]) { for(int i = 0; i < X ; i++) { for(int j=0 ; j < X ; j++) { System.out.print(" " + brd[i][j]) + " "); System.out.println(); } } boolean isSafe(int brd[][] , int r , int c) //r is for row and c is column { int i , j; for(i = 0 ; i < c ; i++) if(brd[r][i] == 1) return false; for(i = r ; j = c ; i >=0 && j >= 0 ;i-- ,j--) if(brd[i][j] == 1) return false; for(i = r , j = c ; j >= 0 && i < X ; i++ , j--) if(brd[i][j] == 1) return false; return true; } boolean EQsolved(int brd[][] , int c) { if(c >= X) return true; for(int i= 0; i < X ;i++) { if(isSafe(brd , i , c)) { brd[i][c] = 1; if(EQsolved(brd , c + 1) == true ) return true; brd[i][c] = 0 ; } } return false; } boolean…arrow_forwardJava Program Fix this Rock, Paper and scissor program so I can upload it to Hypergrade and it can pass all the test cases. Here is the program: import java.util.Random;import java.util.Scanner;public class RockPaperScissors { public static void main(String[] args) { if (args.length != 1) { System.out.println("Please provide a seed as a command line argument."); return; } long seed = Long.parseLong(args[0]); Random random = new Random(seed); Scanner scanner = new Scanner(System.in); System.out.println("Enter 1 for rock, 2 for paper, and 3 for scissors."); do { int computerChoice = random.nextInt(3); int userChoice = getUserChoice(scanner); if (userChoice == -1) { continue; } System.out.println("Your choice: " + choiceToString(userChoice) + ". Computer choice: " + choiceToString(computerChoice) + "."); int result =…arrow_forward
- PROGRAM SIMULATION. Understand the given JAVA program and write the output. b. public class ChangeIt { public void doIt( int[] z ) { z[0] = 0; } } public class TestIt { public static void main ( String[] args ) { int[] myArray = {1, 2, 3, 4, 5} ; ChangeIt.doIt(myArray ); for (int j=0; j<myArray.length; j++ ) System.out.print( myArray[j] + " " ) ; } }arrow_forwardpublic class MysteryReturn2 {3 public static void main(String[] args)4 {5 int x = 1;6 int y = 2;7 int z = 3;89 z = mystery(x, z, y);10 System.out.println(x + " " + y + " " + z);11 }1213 public static int mystery(int c, a, int b);14 {15 c--;16 a = 2 * b + c;17 b = a - 1;18 System.out.println(b + " " + c);1920 return a;21 }22 } 1. The mystery method has three parameter variables, a, b, and c. What is the scope of these variables (that is, where can they be used by their name)?arrow_forwardRewrite the private static int recurseMax method without using Java API public class Recursion{ public static void main(String[] args){ // My tests (DO NOT MODIFY!) int[] a = {3,2,6,4,15,7,9,8,6}; p(recurseSum(a)); // Sum should be 60 p(recurseMax(a)); // Max should be 15 // End of tests! } // Recursive methods below here... public static int recurseSum(int[] a){ // TODO: This is the wrapper method. You must complete this AND implement helper method int total = recurseSum(a, a.length); return total; } private static int recurseSum(int[] a, int i){ if (i <= 0) return 0; return (recurseSum(a, i - 1) + a[i - 1]); } public static int recurseMax(int[] a){ int max = recurseMax(a, a.length); return max; } private static int recurseMax(int[] a, int i){ if(i == 1) return a[0]; return Math.max(a[i-1], recurseMax(a, i-1)); } //…arrow_forward
- Fast in java coding please. Thank you What will the following program print?public class CompleteConcept {public static void main(String[] args){ String a = new String("HelloUniverse!");System.out.println(a.toUpperCase());System.out.println(a.toLowerCase());System.out.println(a.length());System.out.println(a.charAt(0));System.out.println(a.indexOf('e'));System.out.println(a.indexOf("Uni"));System.out.println(a.substring(6));System.out.println(a.substring(6, 9));System.out.println(a.equals("hello universe!"));System.out.println(a.equalsIgnoreCase("hello universe!"));System.out.println(a.startsWith("Hello"));System.out.println(a.startsWith("Uni", 6));System.out.println(a.endsWith("e!"));System.out.println(a.contains("Uni"));System.out.println(a.replace('e', 'u'));System.out.println(a.replace("ll", "lll"));a = " A B C \n ";System.out.println(a.trim());}}arrow_forwardUsing Jcreator, open, compile, and run java and observe its runtime. Write your observation regarding how encapsulation works for the program and the data it processed. Limit your paper to a single paragraph with at least 50 words or five (5) sentences. Source code: public class EncapTest { private String name; private String idNum; private int age; public int getAge() { return age; } public String getName() { return name; } public String getIdNum() { return idNum; } public void setAge( int newAge) { age = newAge; } public void setName(String newName) { name = newName; } public void setIdNum( String newId) { idNum = newId; }} public class RunEncap { public static void main(String args[]) { EncapTest encap = new EncapTest(); encap.setName("James"); encap.setAge(20); encap.setIdNum("12343ms"); System.out.print("Name : " + encap.getName() + " Age : " + encap.getAge()); }}arrow_forwardIn Java trace the table for a while loop public class Main { public static void main(String[] args) { // Question 2 j = 30; x=5; for (int i=1;i<=2;i++) { while (j > 20) { j=j-x*i; ++x; }// end of while }// end of for j x i j<=2 j>20arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Memory Management Tutorial in Java | Java Stack vs Heap | Java Training | Edureka; Author: edureka!;https://www.youtube.com/watch?v=fM8yj93X80s;License: Standard YouTube License, CC-BY