EBK JAVA PROGRAMMING
8th Edition
ISBN: 9781305480537
Author: FARRELL
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Expert Solution & Answer
Chapter 2, Problem 1RQ
Program Description Answer
After compilation, when a data in the
Hence, the correct answer is option “A”.
Expert Solution & Answer
Explanation of Solution
Constant:
The variable is defined as constant variable when the data item cannot be changed while the program is running.
- Constants are mostly used to define default values.
- For example: PI has the constant value 3.14.
- Consider the following statement in a Java class, the number 143 is constant, every time the java application containing the below statement with constant 143 is executed, the value 143 is displayed.
System.out.println(143);
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Students have asked these similar questions
Create a new Type called Fraction
Fraction when created takes in two values (numerator and denominator, num and den)
should be able to add and subtract two fractions (think common denomenator when adding and subtracting)Invertingdisplay the representation of the number as a fractionhere is part of the class Fraction
class Fraction(object):def _init_(self, num, den):self.num = numself.den = dendef _str_(self):return str(self.num) + "/" + str(self.den)
def _add_(self, other):pass
def _sub_(self,other):pass
def inv(self):pass
def _repr_(self):return str(self.num) + "/" + str(self.den)
Here is an example of how it should work when using the console:>> x = Fraction(2,3)>> print(x)2/3>> y= Fraction(3,4)>> print(y)3/4>> z = x + y>> print(z)17/12
Create an application that accepts employee data interactively. Users might make any of the following errors as they enter data:
The employee number is not numeric, less than 1000 or more than 9999
The hourly pay rate is not numeric, less than R9.00 or more than R25.00
Create a class that stores an array of six usable error message that describe the preceding mistakes; save the file as EmployeeMessages.java. Create an EmployeeException class; each object of this class will store one of the messages. Save the file as EmployeeException.java. Create an application that prompts the user for employee data, and display the appropriate message when an error occurs. If no error occurs, display the message “Valid Employee data”. Save the program as EmployeeDataEntery.java
(in java form)
Class Student
__init__(self, id: int, fist_name: str, last_name: str, town:str):
""" This creates a student object with the specified ID first and last name and home town. This constructor should also create data structure for holding the students grades for all of there assignments. Additionally it should create a variable that holds the student's energy level which will be a number between 0 and 1. :param id: The student's identifiaction number :param fist_name: The student's first name :param last_name: The student's last name :param town: The student's home town """
get_id(self)->int:
""" Returns the ID of the student as specified in the constructor. :return: The student's ID """
get_first_name(self) -> str:
""" Returns the first name of the student. :return: The student's first name """
set_first_name(self, name:str):
""" Changes the student first name to the specified value of the name parameter. :param name: The value that the first name of the student will equal. """…
Chapter 2 Solutions
EBK JAVA PROGRAMMING
Ch. 2 - Prob. 1RQCh. 2 - Prob. 2RQCh. 2 - Prob. 3RQCh. 2 - Prob. 4RQCh. 2 - Prob. 5RQCh. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Prob. 10RQ
Ch. 2 - Prob. 11RQCh. 2 - Prob. 12RQCh. 2 - Prob. 13RQCh. 2 - Prob. 14RQCh. 2 - Prob. 15RQCh. 2 - Prob. 16RQCh. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - Prob. 19RQCh. 2 - Prob. 20RQCh. 2 - Prob. 1PECh. 2 - Prob. 2PECh. 2 - Prob. 4PECh. 2 - Prob. 5PECh. 2 - Prob. 6PECh. 2 - Prob. 7PECh. 2 - Prob. 8PECh. 2 - Prob. 9PECh. 2 - Prob. 10PECh. 2 - Prob. 11PECh. 2 - Prob. 12PECh. 2 - Prob. 1GZCh. 2 - Prob. 2GZCh. 2 - Prob. 1CPCh. 2 - Prob. 2CP
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