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Define a Java class as described below. All variables should be declared as private and all methods as public. Save the class definition in a file with an appropriate filename. Class Name: Family Instance Variables: numDependents - int (Fields) annuallncome - double Instance Methods: A constructor that accepts no arguments and sets the number of dependents field to 1 and the annual income field to zero. A constructor that accepts 1 argument, an annual income amount and sets the number of dependents to1. A constructor that accept 2 arguments representing an initial value for each of the fields. Accessor/Getter Methods: (Use appropriate method names) dependents() A function to return the number of dependents. income() A function to return the annual income amount. Mutator/Setter Methods: (Use appropriate method names) dependents() A function that has an integer formal argument that is assigned to the number of dependents field.

Define a Java class as described below. All variables should be declared as private and all methods as public. Save the class definition in a file with an appropriate filename. Class Name: Family Instance Variables: numDependents - int (Fields) annuallncome - double Instance Methods: A constructor that accepts no arguments and sets the number of dependents field to 1 and the annual income field to zero. A constructor that accepts 1 argument, an annual income amount and sets the number of dependents to1. A constructor that accept 2 arguments representing an initial value for each of the fields. Accessor/Getter Methods: (Use appropriate method names) dependents() A function to return the number of dependents. income() A function to return the annual income amount. Mutator/Setter Methods: (Use appropriate method names) dependents() A function that has an integer formal argument that is assigned to the number of dependents field.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Working With Java Classes Define a Java class as described below. All variables should be declared as private and all methods as public. Save the class definition in a file with an appropriate filename. Class Name: Family Instance Variables: numDependents - int (Fields) annualIncome - double Instance Methods: A constructor that accepts no arguments and sets the number of dependents field to 1 and the annual income field to zero. rate). A constructor that accepts 1 argument, an annual income amount and sets the number of dependents to1. A constructor that accept 2 arguments representing an initial value for each of the fields. Accessor/Getter Methods: (Use appropriate method names) dependents() A function to return the number of dependents. income() A function to return the annual income amount. Mutator/Setter Methods: (Use appropriate method names) dependents() A function that has an integer formal argument that is assigned to the number of dependents field. income() A function that has a double formal argument that is assigned to the annual income field. calcInsurance() A function that has one input argument representing an insurance rate (double). It calculates and returns an insurance charge based on the number of dependents and the annual income (income * dependents * calcInsurance() A function with no arguments. It calculates and returns an insurance charge using a default insurance rate of 10%. calcWithhold() A function to calculate and return a withholding amount as follows: income * 22% minus $500 for each dependent Compile and debug the above code. (You cannot execute it.)
Transcribed Image Text:Working With Java Classes Define a Java class as described below. All variables should be declared as private and all methods as public. Save the class definition in a file with an appropriate filename. Class Name: Family Instance Variables: numDependents - int (Fields) annualIncome - double Instance Methods: A constructor that accepts no arguments and sets the number of dependents field to 1 and the annual income field to zero. rate). A constructor that accepts 1 argument, an annual income amount and sets the number of dependents to1. A constructor that accept 2 arguments representing an initial value for each of the fields. Accessor/Getter Methods: (Use appropriate method names) dependents() A function to return the number of dependents. income() A function to return the annual income amount. Mutator/Setter Methods: (Use appropriate method names) dependents() A function that has an integer formal argument that is assigned to the number of dependents field. income() A function that has a double formal argument that is assigned to the annual income field. calcInsurance() A function that has one input argument representing an insurance rate (double). It calculates and returns an insurance charge based on the number of dependents and the annual income (income * dependents * calcInsurance() A function with no arguments. It calculates and returns an insurance charge using a default insurance rate of 10%. calcWithhold() A function to calculate and return a withholding amount as follows: income * 22% minus $500 for each dependent Compile and debug the above code. (You cannot execute it.)
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Then, create a program, TestFamily, to completely test the above class: 1. Create an instance of the class with no input data; then call the appropriate instance methods to: change the income to $12,000 • calculate the insurance with a rate of 6.5% • calculate the withholding amount ● call printInfo()** 2. Create an instance of the class with an income of $25,000; then: • change the number of dependents to 3 • calculate the insurance using the default insurance rate ● calculate the withholding amount • call printInfo() ** 3. Prompt the user for a family's income and number of dependents. Create an instance with these values; then: • calculate the insurance using a rate of 7% • calculate the withholding amount call printInfo()** **Use different parameter variations for each call to printInfo(). For example, variable assignments, nested method calls, etc. Program Class method: printInfo() This method should have four formal arguments: the number of dependents, the income, the insurance amount, and the withholding amount. The method should display the information about a family to include the number of dependents, the income, and the insurance and withholding amounts in a readable format. Save the file with the appropriate file name. Compile and execute the program. Check your output!!
Transcribed Image Text:Then, create a program, TestFamily, to completely test the above class: 1. Create an instance of the class with no input data; then call the appropriate instance methods to: change the income to $12,000 • calculate the insurance with a rate of 6.5% • calculate the withholding amount ● call printInfo()** 2. Create an instance of the class with an income of $25,000; then: • change the number of dependents to 3 • calculate the insurance using the default insurance rate ● calculate the withholding amount • call printInfo() ** 3. Prompt the user for a family's income and number of dependents. Create an instance with these values; then: • calculate the insurance using a rate of 7% • calculate the withholding amount call printInfo()** **Use different parameter variations for each call to printInfo(). For example, variable assignments, nested method calls, etc. Program Class method: printInfo() This method should have four formal arguments: the number of dependents, the income, the insurance amount, and the withholding amount. The method should display the information about a family to include the number of dependents, the income, and the insurance and withholding amounts in a readable format. Save the file with the appropriate file name. Compile and execute the program. Check your output!!
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