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Problem
Esperanto
Esperanto is a language invented in the 1880s by L. L. Zamenhof. It was invented to "create an easy-to-learn and politically neutral language that would serve as a universal second language to foster peace and international understanding."
One of the benefits of designing your own language is that you can impose strict rules on the language. In this question, you will use the rules of Esperanto to identify the parts of speech of different words. The rules for identifying parts of speech in Esperanto are:
If the word ends in .. |
it is a(n)... |
a | adjective |
o or on | singular noun |
oj or ojn | plural noun |
e | adverb |
This means there are no exceptions in Esperanto, like how in English the plural of goose is geese and while you usually add 'ly' to the end of an adjective to make it an adverb, 'goodly' isn't an adverb.
Write a program that accepts words in Esperanto, and identifies whether each is an adjective, singular noun, plural noun or adverb. Input: Use Scanner to accept input in this question. Prompt the user to input a word. If the user types in "cesi" ("quit" in Esperanto), the program should quit. Otherwise, it should accept the input and process it as a word in Esperanto. After processing the word, the user should be prompted to enter another word. Assume the user inputs the words entirely in lowercase and that all words are at least three letters long. Calculate and Output: Use System.out. for all output. Use the charAt() and length() methods to find the last (one or possibly two) characters and determine which part of speech (adverb, singular noun, plural noun or adverb) the word is. If the word is in none of the four categories, print out an error message telling the user that the part of speech cannot be identified. An execution of your program would look like this:
Enter a word in Esperanto: komputilo
komputilo is a singular noun.
Enter a word in Esperanto: sciencon
sciencon is a singular noun.
Enter a word in Esperanto: cesi
Programmed by [your name here].
End of processing.
- Organize the code.
- Add comments to explain the code.
- Optimize the code by removing unnecessary variables.
- Find any errors in the code.
- Add code to output progress reports as the program executes.
Remember to abide by the company coding standards while repairing the code.
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Esperanto
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Solution
ENTER SOLUTION
There are nine steps to improve this messy code so it complies with the company (and coincidentally, comp 1010) coding standards:
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Code
Solution Code
import javax.swing.*;
import java.util.Date;
/**
* calculate a check digit for ISBNs
*
* @author: 1010 Instructors
* @version: 2007-September
*/
public class CaseStudy1_ISBN_Solution
{
/**
* PURPOSE: inputs a 9-digit ISBN, calculates the check digit and outputs a 10-digit ISBN
*/
public static void main (String [] args)
{
//variables declared here
String temp; //temporary input string
int isbn; //9-digit ISBN
int digit; //isolated ISBN digit
int total; //total of isbn number when each digit is multiplied by check value
int checkDigit; //value of total%11(as per ISBN standard)
//get input
temp = JOptionPane.showInputDialog
("Enter the first 9 digits of a 10-digit ISBN number.");
isbn = Integer.parseInt(temp);
//confirm input
System.out.println ("You have entered " + temp + ".\n\nThe weighted value of the ISBN is:");
//isolate last digit and multiply by 9
digit = (isbn % 10);
total = digit * 9;
isbn = isbn / 10;
System.out.println (digit + " * " + 9 + " for a running total of " + total);
//isolate next digit and multiply by 8
digit = (isbn % 10);
total = total + digit * 8;
isbn = isbn / 10;
System.out.println (digit + " * " + 8 + " for a running total of " + total);
//isolate next digit and multiply by 7
digit = (isbn % 10);
total = total + digit * 7;
isbn = isbn / 10;
System.out.println (digit + " * " + 7 + " for a running total of " + total);
//isolate next digit and multiply by 6
digit = (isbn % 10);
total = total + digit * 6;
isbn = isbn / 10;
System.out.println (digit + " * " + 6 + " for a running total of " + total);
//isolate next digit and multiply by 5
digit = (isbn % 10);
total = total + digit * 5;
isbn = isbn / 10;
System.out.println (digit + " * " + 5 + " for a running total of " + total);
//isolate next digit and multiply by 4
digit = (isbn % 10);
total = total + digit * 4;
isbn = isbn / 10;
System.out.println (digit + " * " + 4 + " for a running total of " + total);
//isolate next digit and multiply by 3
digit = (isbn % 10);
total = total + digit * 3;
isbn = isbn / 10;
System.out.println (digit + " * " + 3 + " for a running total of " + total);
//isolate next digit and multiply by 2
digit = (isbn % 10);
total = total + digit * 2;
isbn = isbn / 10;
System.out.println (digit + " * " + 2 + " for a running total of " + total);
//isolate next digit and multiply by 1
digit = (isbn % 10);
total = total + digit * 1;
isbn = isbn / 10;
System.out.println (digit + " * " + 1 + " for a running total of " + total);
//calculate check digit
checkDigit = total % 11;
//output weighted total and check digit
System.out.println ("The weighted total is: " + total +
"\nThe check digit is : " + checkDigit +
"\n\nThe 10-digit ISBN is: " + temp + checkDigit);
System.out.println("\nProgrammed by COMP 1010 Instructors");
System.out.println("Date: " + new Date());
System.out.println ("*** End of Processing ***");
}//end main
}//end class
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