Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 6.4, Problem 6.4.9CP
Identify and correct the errors in the following
- 1. public class Test {
- 2. public static method1(int n, m) {
- 3. n += m;
- 4. method2(3. 4 );
- 5. }
- 6.
- 7. public static int method2(int n) {
- 8. if (n > 0 ) return 1 ;
- 9. else if (n == 0 ) return 0 ;
- 10. else if (n < 0) return - 1 ;
- 11. }
- 12. }
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
public 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.
public 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)?
public class sample{public static int x = 100;public static int y = 150;
}public class newspaper :sample{new public static int x = 1000;static void Main(string[] args){console.writeline(sample.x + " " + sample.y + " " + x);}}
100 150 1000
1000 150 1000
100 150 1000
100 150 100
Chapter 6 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 6.4 - What are the benefits of using a method?Ch. 6.4 - Prob. 6.4.2CPCh. 6.4 - How do you simplify the max method in Listing 6.1...Ch. 6.4 - Prob. 6.4.4CPCh. 6.4 - Prob. 6.4.5CPCh. 6.4 - Prob. 6.4.6CPCh. 6.4 - Prob. 6.4.7CPCh. 6.4 - Write method headers (not the bodies) for the...Ch. 6.4 - Identify and correct the errors in the following...Ch. 6.4 - Prob. 6.4.10CP
Ch. 6.5 - Prob. 6.5.1CPCh. 6.5 - Identify and correct the errors in the following...Ch. 6.5 - Prob. 6.5.3CPCh. 6.5 - Prob. 6.5.4CPCh. 6.6 - Prob. 6.6.1CPCh. 6.6 - Prob. 6.6.2CPCh. 6.7 - What is hexCharToDecimal ( B)) ? What is...Ch. 6.8 - What is method overloading? Is it permissible to...Ch. 6.8 - What is wrong in the following program? public...Ch. 6.8 - Given two method definitions, public static double...Ch. 6.9 - Prob. 6.9.1CPCh. 6.9 - What is the scope of a local variable?Ch. 6 - (Math: pentagonal numbers) A pentagonal number is...Ch. 6 - (Sum the digits in an integer) Write a method that...Ch. 6 - (Palindrome integer) Write the methods with the...Ch. 6 - (Display an integer reversed) Write a method with...Ch. 6 - (Sort three numbers) Write a method with the...Ch. 6 - (Display patterns) Write a method to display a...Ch. 6 - (Financial application: compute the future...Ch. 6 - (Conversions between Celsius and Fahrenheit) Write...Ch. 6 - Prob. 6.9PECh. 6 - (Use the isPrime Method) Listing 6.7,...Ch. 6 - (Financial application: compute commissions) Write...Ch. 6 - (Display characters) Write a method that prints...Ch. 6 - (Sum series) Write a method to compute the...Ch. 6 - (Estimate ) can be computed using the following...Ch. 6 - (Financial application: print a tax table) Listing...Ch. 6 - Prob. 6.16PECh. 6 - Sections 6.10 and 6.11 6.17 (Display matrix of 0s...Ch. 6 - (Check password) Some Websites impose certain...Ch. 6 - (Triangles) Implement the following two methods: /...Ch. 6 - (Count the letters in a string) Write a method...Ch. 6 - (Phone keypads) The international standard...Ch. 6 - (Math: approximate the square root) There are...Ch. 6 - (Occurrences of a specified character) Write a...Ch. 6 - (Display current date and time) Listing 2.7,...Ch. 6 - Prob. 6.25PECh. 6 - (Palindromic prime) A palindromic prime is a prime...Ch. 6 - (Emirp) An emirp (prime spelled backward) is a...Ch. 6 - (Mersenne prime) A prime number is called a...Ch. 6 - (Twin primes) Twin primes are a pair of prime...Ch. 6 - (Game: craps) Craps is a popular dice game played...Ch. 6 - (Financial: credit card number validation) Credit...Ch. 6 - (Game: chance of winning at craps) Revise...Ch. 6 - (Current date and time) Invoking System....Ch. 6 - (Print calendar) Programming Exercise 3.21 uses...Ch. 6 - (Geometry: area of a pentagon) The area of a...Ch. 6 - (Geometry: area of a regular polygon) A regular...Ch. 6 - (Format an integer) Write a method with the...Ch. 6 - (Generate random characters) Use the methods in...Ch. 6 - (Geomentry: point position) Programming Exercise...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
In this chapter, we have introduced some functions with, unsual call and return behaviors longjmp, execve, and ...
Computer Systems: A Programmer's Perspective (3rd Edition)
The ________ function returns the number of elements in a dictionary: a. size() b. len() C. elements() d. count...
Starting Out with Python (3rd Edition)
(Arithmetic, Largest Value and Smallest Value) Write a program that inputs three different integers from the ke...
C How to Program (8th Edition)
What will the following program display on the screen? #include iostream using namespace std; class Tank { priv...
Starting Out with C++ from Control Structures to Objects (9th Edition)
A subclass does not have access to these superclass members. a. public b. private c. protected d. all of these
Starting Out with Java: Early Objects (6th Edition)
Implement the findProduct method. This should look through the collection for a product whose id field matches ...
Objects First with Java: A Practical Introduction Using BlueJ (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
- public class Turn{public static void main(String[] args){// Different initial values will be used for testingint x = 1; int y = 1; // Turn the arrow by 90 degrees System.out.print("x:", y + 90);System.out.println(x);System.out.print("y: ", x - 1 );System.out.println(y); // Turn the arrow again System.out.print("x:", y - 1);System.out.println(x);System.out.print("y: ",x + 90);System.out.println(y);}}arrow_forwardFind the error of the following method definition: public static void timesTwo( int x, int y) { int sum=x + y; return sum; }arrow_forwardpublic static void printIt(int value) { if(value 0) { } System.out.println("Play a paladin"); System.out.println("Play a white mage"); }else { } }else if (value < 15) { System.out.println("Play a black mage"); System.out.println("Play a monk"); } else { public static void main(String[] args) { printit (5); printit (10); printit (15); Play a black mage Play a white mage (nothing/they are all printed) Play a paladin Play a monkarrow_forward
- class Test { private int a; private int b; public Test() { a = 5; b = a - 3; } public int getA() { return a; } public int getB() { return b; } public void multiplyBy1000() { a *= 1000; } public void subtractSeven() { b -= 7; } } Given the following code, what will the output be? Will the code compile and execute? If so, what will be displayed? If there is an error, what is the error? Give the best description you can give. class Main { public static void main(String[] args) { Test m = new Test(); System.out.println("a = " + m.getA() + ", b = " + m.getB()); m.multiplyBy1000(); System.out.println("a = " + m.getA() + ", b = " + m.getB()); m.subtractSeven(); System.out.println("a = " + m.getA() + ", b = " + m.getB()); } }arrow_forwardAnalyze the following code. public class Test { public static void main(String[] args){ System.out.printlin( m(2) ); public static int m( int num ) { return num; } public static void m( int num ) { System.out.printin( num ); } The program has a compile error because the second m method is def method. The program runs and prints 2 once.arrow_forwardQUESTION 9 Public Class Employee { public static int y; Private int age; Public Employee(0{ age=0;} public int get_age() { return age;} Public Class Test { public static void main(String[] args) { Employee q = new Employee(); q.y=2; Employee.y=10; System.out.println("y=" + q.y); a. What is the output of the following code? b. Insert a System.out.println() statement that prints out q's agearrow_forward
- class Param3 { public int x; private void increase(int p) { x = x*p; } public void calculateX(int y) { increase(y); } public int getX() { return x; } } // in another class Param3 q3 = new Param3(); q3.x = 5; q3.calculateX(7); System.out.println(q3.getX()); what would be the answer for the last two lines ? also above were x = x*p do both x in here are the fields? wouldn't that be cnofusing?arrow_forwardpublic class Errors{public static void main (String[] args){System.out.println("Welcome to my first program!\n")String ageStr = "24 years";int age = Integer.parseInt(ageStr);System.out.println("I'm " + age + " years old.");int three = "3";int answerYears = age + three;System.out.println("Total number of years: " + answerYears);int answerMonths = answerYears * 12; System.out.println("In 3 years and 6 months, I'll be " + answerMonths + " months old");//Once you've corrected all the errors, the answer should be 330.}}arrow_forwardQuestion public class MyProgram { if (h 18) { public static void main(String[] args) { int h=10, t-22; System.out.print ("Good "); } } else } } What is the output displayed by the following lines of code?" System.out.print ("Morning"); t = t + 2; if (t > 30) System.out.println(" Every one!"); System.out.println("The Your answer system.out.print("Evening"); t = t + 5; temperature is " System.out.println(" Brink water?"); Degree.");arrow_forward
- Follow these steps: Open the Java file Errors.java. Attempt to compile the program. You'll notice the compilation will fail due to some errors. Fix all the compilation errors and compile the program again. Every time you fix an error, add a comment to the line you fixed and indicate which of the three types of errors it was. Now run the program. Once again, you'll encounter some errors (this time, runtime errors). Fix these errors and run the program once again to see if it works. Now run the program and notice the output. You'll notice that there are some logical errors in the code. Fix these errors and run the program once again to see if it now correctly displays what it should.arrow_forwardI am getting an error Error: Main method not found in class Course, please define the main method as: public static void main(String[] args)arrow_forwardpublic class Test { } public static void main(String[] args) { int a = 5; a += 5; } switch(a) { case 5: } System.out.print("5"); break; case 10: System.out.print("10"); System.out.print("0"); default:arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage LearningProgramming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:CengageEBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
- EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning
Programming Logic & Design Comprehensive
Computer Science
ISBN:9781337669405
Author:FARRELL
Publisher:Cengage
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781305480537
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Java Math Library; Author: Alex Lee;https://www.youtube.com/watch?v=ufegX5o8uc4;License: Standard YouTube License, CC-BY