Prompt the user for the year they were born// b. Declare a constant for the current year.// c. Calculate and print the age the user will be this year.// d. Declare a constant for average life expectancy,// set its value to 78.94// e. Calculate and print the percentage of the user's// expected life they've lived. Use the DecimalFormat// class to format the percentage to one decimal place.// Your code goes here Its quiet diffucult what to start with?

Prompt the user for the year they were born// b. Declare a constant for the current year.// c. Calculate and print the age the user will be this year.// d. Declare a constant for average life expectancy,// set its value to 78.94// e. Calculate and print the percentage of the user's// expected life they've lived. Use the DecimalFormat// class to format the percentage to one decimal place.// Your code goes here Its quiet diffucult what to start with?

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter2: Using Data

Section: Chapter Questions

Problem 1CP

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Imagine some publishing company that markets both book and audio cassette versions of its works. Create a class called publication that stores the title (a string) and price (type float) of a publication.From this class derive two classes: book, which adds a page count (type int); and tape, which adds a playing time in minutes (type float). Each of the three classes should have a getdata( ) function to get its data from the user at the keyboard, and a putdata( ) function to display the data.Write a main( ) program that creates an array of pointers to publication. In a loop, ask the user for data about a particular book or tape, and use new to create an object of type book or tape to hold the data. Put the pointer to the object in the array. When the user has finished entering the data for all books and tapes, display the resulting data for all the books and tapes entered, using a for loop and a single statement such as pubarr[j]->putdata( ); to display the data from each object in…
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