Homework Answers
Source code:
public interface Vehicle
{
public double getHorsePower();
}
Explanation:
Methods in interface doesn't have any implementation because those are abstract methods .But getHorsePower() returning the value. The class which is implementing the interface Vehicle that should return the value.
Add Answer to:
Fix the error in the following code. public interface Vehicle { double getHorsepower() {return 455;} }
m The interface Measurable is defined as the following: /** An interface for methods that return...
m The interface Measurable is defined as the following: /** An interface for methods that return the perimeter and area of an object. */ public interface Measurable { public double getPerimeter(); public double getArea(); } The class Rectangle implements the interface. The incomplete program is written as follows: 1 public class Rectangle 2 { private double width; private double height; public Rectangle(double w, double h) { width = w; height h; } { 3 4 5 6 7 8 9...
Suppose we have the following Java Interface: public interface Measurable { double getMeasure(); // An...
Suppose we have the following Java Interface: public interface Measurable { double getMeasure(); // An abstract method static double average(Measurable[] objects) { // A static method double sum = 0; for (Measurable obj : objects) { sum = sum + obj.getMeasure(); } if (objects.length > 0) { return sum / objects.length; } else { return 0; } } } Write a class, called Person, that has two instance variables, name (as...
Receiveing this error message when running the Experts code below please fix ----jGRASP exec: javac -g...
Receiveing this error message when running the Experts code below please fix ----jGRASP exec: javac -g GeometricObject.java GeometricObject.java:92: error: class, interface, or enum expected import java.util.Comparator; ^ 1 error ----jGRASP wedge2: exit code for process is 1. ----jGRASP: operation complete. 20.21 Please code using Java IDE. Please DO NOT use Toolkit. You can use a class for GeometricObject. MY IDE does not have access to import ToolKit.Circle;import. ToolKit.GeometricObject;.import ToolKit.Rectangle. Can you code this without using the ToolKit? Please show an...
Identify a logical error in the following code and fix it. public class test1 { ...
Identify a logical error in the following code and fix it. public class test1 { public static void main(String[] args){ int total; float avg; int a, b, c; a=10; b=5; c=2; total=a+b+c; avg=total/3; System.out.println("Average: "+avg); } } Answer: Write the output of the program below. import java.util.Scanner; public class test2 { public static void main(String[] arg){ int psid; String name; Scanner input=new Scanner(System.in); System.out.println("Enter your PSID"); psid=input.nextInt(); System.out.println("Enter your...
What is wrong with this Code? Fix the code errors to run correctly without error. There...
What is wrong with this Code? Fix the code errors to run correctly without error. There are two parts for one code (one question) the two parts branch off, one part has 2 sheets of code, the other has 3 sheets of code, all are small code segments for one question. Pt.1 - 2 sheets of code: public class Computer { private String make; private String type; private String modelNumber; private double cpuSpeed_GHz; private int ramSize_GB; private int hardDriveSize_GB; private...
Need Help ASAP!! Below is my code and i am getting error in (public interface stack)...
Need Help ASAP!! Below is my code and i am getting error in
(public interface stack) and in StackImplementation class. Please
help me fix it. Please provide a solution so i can fix the
error.
thank you....
package mazeGame;
import java.io.*;
import java.util.*;
public class mazeGame {
static String[][]maze;
public static void main(String[] args)
{
maze=new String[30][30];
maze=fillArray("mazefile.txt");
}
public static String[][]fillArray(String file)
{
maze = new String[30][30];
try{...
Code using Java What is an interface? Complete the following code: interface IExample{ public void print();...
Code using Java What is an interface? Complete the following code: interface IExample{ public void print(); } class Example1 implements IExample{ . . . } // Driver class public class Questions { public static void main(String[] args) { . . . } } To have this message when you execute it: Implementation of an interface
I Need UML Design for the following Java code: Colorable interface: public interface Colorable { //a...
I Need UML Design for the following Java code: Colorable interface: public interface Colorable { //a void method named howToColor(). void howToColor(); } GeometricObject class: public class GeometricObject { } Sqaure class: public class Square extends GeometricObject implements Colorable{ //side variable of Square double side; //Implementing howToColor() @Override public void howToColor() { System.out.println("Color all four sides."); } //setter and getter methods for Square public void setSide(double side) { this.side = side; } public double getSide() { return...
FIX THE FOLLOWING JAVA CODE public class Errors public static main(String[] args) { float sum int...
FIX THE FOLLOWING JAVA CODE
public class Errors public static main(String[] args) { float sum int a = 27.5, b = 72.99; suma(a, b); System.out.println("Suma = %7:3b", sum); } //end main public static suma(float a, double b) { double suma suma = a + b; } }//end class
How many lexemes does the following Java code contain? public class RectArea { public static double...
How many lexemes does the following Java code contain? public class RectArea { public static double area(double length, double width) { double area = 0.0: try { area = width*height: } catch (Exception e) { System.out.println ("Error in RectArea.area: " + e.getMessage()): System.exit (1): } return area: } } Give the number of lexemes on each line (using the line numbers shown).
m The interface Measurable is defined as the following: /** An interface for methods that return the perimeter and area of an object. */ public interface Measurable { public double getPerimeter(); public double getArea(); } The class Rectangle implements the interface. The incomplete program is written as follows: 1 public class Rectangle 2 { private double width; private double height; public Rectangle(double w, double h) { width = w; height h; } { 3 4 5 6 7 8 9...
Need Help ASAP!! Below is my code and i am getting error in
(public interface stack) and in StackImplementation class. Please
help me fix it. Please provide a solution so i can fix the
error.
thank you....
package mazeGame;
import java.io.*;
import java.util.*;
public class mazeGame {
static String[][]maze;
public static void main(String[] args)
{
maze=new String[30][30];
maze=fillArray("mazefile.txt");
}
public static String[][]fillArray(String file)
{
maze = new String[30][30];
try{...
FIX THE FOLLOWING JAVA CODE
public class Errors public static main(String[] args) { float sum int a = 27.5, b = 72.99; suma(a, b); System.out.println("Suma = %7:3b", sum); } //end main public static suma(float a, double b) { double suma suma = a + b; } }//end class
How many lexemes does the following Java code contain? public class RectArea { public static double area(double length, double width) { double area = 0.0: try { area = width*height: } catch (Exception e) { System.out.println ("Error in RectArea.area: " + e.getMessage()): System.exit (1): } return area: } } Give the number of lexemes on each line (using the line numbers shown).
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