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
Question
Chapter 13.9, Problem 13.9.2CP
Program Plan Intro
Given Code:
//comparable class definition
public class Rational implements Comparable
{
//main function declaration
public static void main(String[] args)
{
//create rational object
Rational r1 = new Rational(-2, 6);
//create object r2
Object r2 = new Rational(1, 45);
//compare the two objects
System.out.println(r2.compareTo(r1));
}
}
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What does the function f do?
struct Point2D
{
double x;
double y;
struct Triangle
{
Point2D v1;
Point2D v2;
Point2D v3;
};
void f(Triangle&t)
{
}
int temp = 12.5;
temp = t.v1.x;
t.v1.x = t.v1.y;
t.v1.y = temp;
}
int main ()
{
Triangle mytri;
mytri.v1.x = 1.0;
mytri.v1.y = 22.5;
f (mytri);
Swaps values of x and y in vertex 1 of an argument of type Triangle
Initializes value of x in vertex 1 of an argument of type Triangle
Sets all x,y values in all vertices of an argument of type Triangle
Swaps value of x in vertex 1 with value of x in vertex 2, for an argument of type
Java Language
How can I make a test in JUnit for this setter and getter with two parameters?
private String customerId;
private String address;
public String getCustomerId(){
return customerId;
}
public void setCustomerId(String customerId){
if (customerId.length()<= 9){
this.customerId = customerId;
}
public String getAddress(){
return address;
}
public void setAddress(String address){
if (address.length()<= 9){
this.address = address;
}
}
class A
Q5: Correct the following code
fragment and what will be the
final results of the variable a
and b
{ protected
int x1,y1,z;
public:
A(a, b,c):x1(a+2),y1(b-1),z(c+2) {
for(i=0; i<5;i++)
x1++; y1++;z++;}};
class B
{ protected:
int x,y;
public:
B(a,b):x(a+1),y(b+2) {
for(i=0; i<5;i++)
x+=2; y+=1;}};
class D:public B, virtual public A
{ private:
int a,b;
public:
D(k,m,n): a(k+n), B(k,m),b(n+2),A(k,m,n) {
a=a+1;b=b+1;}};
int main()
{D ob(4,2,5);}
Chapter 13 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 13.2 - Prob. 13.2.1CPCh. 13.2 - The getArea() and getPerimeter() methods may be...Ch. 13.2 - True or false? a.An abstract class can be used...Ch. 13.3 - Prob. 13.3.1CPCh. 13.3 - Prob. 13.3.2CPCh. 13.3 - Prob. 13.3.3CPCh. 13.3 - What is wrong in the following code? (Note the...Ch. 13.3 - What is wrong in the following code? public class...Ch. 13.4 - Can you create a Calendar object using the...Ch. 13.4 - Prob. 13.4.2CP
Ch. 13.4 - How do you create a Calendar object for the...Ch. 13.4 - For a Calendar object c, how do you get its year,...Ch. 13.5 - Prob. 13.5.1CPCh. 13.5 - Prob. 13.5.2CPCh. 13.5 - Prob. 13.5.3CPCh. 13.5 - Prob. 13.5.4CPCh. 13.6 - Prob. 13.6.1CPCh. 13.6 - Prob. 13.6.2CPCh. 13.6 - Can the following code be compiled? Why? Integer...Ch. 13.6 - Prob. 13.6.4CPCh. 13.6 - What is wrong in the following code? public class...Ch. 13.6 - Prob. 13.6.6CPCh. 13.6 - Listing 13.5 has an error. If you add list.add...Ch. 13.7 - Can a class invoke the super.clone() when...Ch. 13.7 - Prob. 13.7.2CPCh. 13.7 - Show the output of the following code:...Ch. 13.7 - Prob. 13.7.4CPCh. 13.7 - What is wrong in the following code? public class...Ch. 13.7 - Show the output of the following code: public...Ch. 13.8 - Prob. 13.8.1CPCh. 13.8 - Prob. 13.8.2CPCh. 13.8 - Prob. 13.8.3CPCh. 13.9 - Show the output of the following code: Rational r1...Ch. 13.9 - Prob. 13.9.2CPCh. 13.9 - Prob. 13.9.3CPCh. 13.9 - Simplify the code in lines 8285 in Listing 13.13...Ch. 13.9 - Prob. 13.9.5CPCh. 13.9 - The preceding question shows a bug in the toString...Ch. 13.10 - Describe class-design guidelines.Ch. 13 - (Triangle class) Design a new Triangle class that...Ch. 13 - (Shuffle ArrayList) Write the following method...Ch. 13 - (Sort ArrayList) Write the following method that...Ch. 13 - (Display calendars) Rewrite the PrintCalendar...Ch. 13 - (Enable GeometricObject comparable) Modify the...Ch. 13 - Prob. 13.6PECh. 13 - (The Colorable interface) Design an interface...Ch. 13 - (Revise the MyStack class) Rewrite the MyStack...Ch. 13 - Prob. 13.9PECh. 13 - Prob. 13.10PECh. 13 - (The Octagon class) Write a class named Octagon...Ch. 13 - Prob. 13.12PECh. 13 - Prob. 13.13PECh. 13 - (Demonstrate the benefits of encapsulation)...Ch. 13 - Prob. 13.15PECh. 13 - (Math: The Complex class) A complex number is a...Ch. 13 - (Use the Rational class) Write a program that...Ch. 13 - (Convert decimals to fractious) Write a program...Ch. 13 - (Algebra: solve quadratic equations) Rewrite...Ch. 13 - (Algebra: vertex form equations) The equation of a...
Knowledge Booster
Similar questions
- Trace through (show all the steps as we did in class) for the following java code for the factorial function. Show all the steps (illustrate, do not code) that lead to the final answer when myFactorial(6) is called: int myFactorial( int integer) { if( integer == 1) return 1; else { return(integer*(myFactorial(integer-1); } }arrow_forwardCan you helo me Fix the typo in the following program. My solution should be a single line of code with the typo fixed: public class Rational{ private int numerator; private int denominator; public Rational(int numerator, int denominator) { this.numerator = numerator; this.denominator = denominator; } public int getNumerator(){ return this.numerator; } public int getDenominator(){ return this.denominator; } public double getFraction(){ return (double)numerator / (double)denominator; } public String toString(){ return numerator+"/"+denominator; } public static void main(String[] args) { Rational r = new Rational(2,3); System.out.println(r); double real = getFraction(); System.out.println(real); } } Thank you!arrow_forwardinhinclude Rsing namespace std; int maxResult( ) int maxVal for (int i { for (int j = 0; j <= n 0; i <= n; i += a) i; j += b) %3D %3D float z = (float)(n (i + j)) / (float)(c); if (floor(z) { int x = int y ceil(z)) i / a; j/ b; maxVal = max(maxVal, x + y (int)z); return maxVal; } int main() { max cout << maxResult( ); return 0; 1 } Input Compilation failed due to fellowing ons main.cpp:7:23: error: 'n' was not declared in this scope 7| for (int i = 0; i <= n; i a) main.cpp:7:31: error: 'a was not declared in this scope for (int i = 0; i <= n; i t= a) %3D main.cpp:9:36: error: b' was not declared in this scope | 6 for (int j = 0; j <= n - i; j - b) %3D main.cpp:11:45: error: 'c was not declared in this scopearrow_forward
- Consider the set A = {1, 2, 11, {121}, 22, 1212, (111, 212, 112}} Enter the value of Al. (Note: Enter a number).arrow_forwardWhat does the following code do? In [1]: def mystery (a, b) : if b == 1: return a else: return a + mystery (a, b - 1) In [2]: mystery (2, 10) Out [2]: ?????arrow_forwardConsider the following code segment and answer questions 14 and 15. class Point { public: Point (double x = -99, double y = -99) { this -> xM = x; this -> yM = y;} double getx () {return xM; } double gety () {return yM; } void setx (double x) {this -> xM = x; } void sety (double y) {this -> yM = y; } private: double xM, yM; }; 14. What is the output of the following code snippet: Point pl (100); cout << pl.getx() << " " << pl.gety(); a. The output of the program is: -99 -99 b. The output of the program is: 100 100 c. The output of the program is: -99 100 d. The output of the program is: 100 -99 e. None of the above. It doesn't compile because constructor of Point needs two arguments. 15. How many times does the constructor of class Point get called by the following code snippet: Point a (100, 200); Point b[6]; Point *c = new Point; Point *d = new Point (300, 400); a. Four times b. Three times c. Nine times d. Two times e. None of the abovearrow_forward
- In C++ QUESTION 14 class rectangleType { public: void setLengthWidth(double x, double y); //Sets the length = x; width = y; void print() const; //Output length and width double area(); //Calculate and return the area of the rectangle (length*width) double perimeter(); //Calculate and return the perimeter (length of outside boundary of the rectangle) private: double length; double width; }; Write the function definition for the function perimeterarrow_forwardInstructionsDefine an enumeration type triangleType that has the values scalene, isosceles, equilateral, and noTriangle.Write a function triangleShape that takes as parameters three numbers, each of which represents the length of a side of the triangle. The function should return the shape of the triangle. (Note: In a triangle, the sum of the lengths of any two sides is greater than the length of the third side.)Write a program that prompts the user to input the length of the sides of a triangle and outputs the shape of the triangle.arrow_forwardA spell checker in a word processing program makes suggestions when it finds a word not in the dictionary. To determine what words to suggest, it tries to find similar words. One measure of word similarity is the Levenshtein distance, which measures the number of substitutions, additions, or deletions that are required to change one word into another. For example, the words spit and spot are a distance of 1 apart; changing spit to spot requires one substitution (i for o). Likewise, spit is distance 1 from pit since the change requires one deletion (the s). The word spite is also distance 1 from spit since it requires one addition (the e). The word soot is distance 2 from spit since two substitutions would be required. a. Create a graph using words as vertices, and edges connecting words with a Levenshtein distance of 1. Use the misspelled word “moke” as the center, and try to find at least 10 connected dictionary words. How might a spell checker use this graph? b. Improve the method…arrow_forward
- 8. Given this code: //This a code to determine the root of a function //The function is (cosx+2)/3 #include #include float root(float); int main() { float a[100],b[100],c=100.0; int i=1,j=0; b[0]=(cos(0)-3*0+1); printf("\nEnter a beginning guess:\n"); scanf ("%f",&a[0]); while(c>0.00001) { a[j+1]=root(a[j]); c=a[j+1]-a[j]; c=fabs(c); //fabs = Absolute Value of Floating-Point Number j++; } printf("\n The root of the given function is %f",a[j]); } float root(float x) {arrow_forwardI think the argument should be ((q-->p) AND p) -->q --please advisearrow_forwardsum = 0; for (int i = 1; i< n; i = sum++ || 2*i)arrow_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 EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable 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