Computer Science 210
Data Structures
Fall 2019, Siena College
HoursWorked2 BlueJ Project
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HoursWorked2 Source Code
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/**
* Example HoursWorked2: another method example, and using
* a Scanner on a String, this time passing the Scanner as a parameter
* instead of the String
*
* @author Siena College, CSIS 120 faculty
* Updated by Jim Teresco, CSC 202, The College of Saint Rose, Fall 2012
* @version Fall 2019
*
*/
import java.io.File;
import java.io.IOException;
import java.util.Scanner;
public class HoursWorked2 {
/**
Read some information about hours worked by employees
and print the total hours worked by each.
@param args not used
@throws IOException if there are problems reading the
hours.dat file
*/
public static void main(String[] args) throws IOException {
Scanner input = new Scanner (new File("hours.dat"));
// pass the Scanner to the method to process one line
// at a time
while (input.hasNextLine()) {
readAndProcessLine(input);
}
}
/**
* Read and rocess the line for one employee with the format:
* ID Name hours hours hours ...
*
* @param s the Scanner from which to read the next employee's line
*/
public static void readAndProcessLine (Scanner s) {
String text = s.nextLine();
// create a Scanner to parse the next line
Scanner data = new Scanner(text);
// we know the String contains an int
int id = data.nextInt();
// then a String
String name = data.next();
double sum = 0.0;
// then a series of doubles
while (data.hasNextDouble()) {
sum += data.nextDouble();
}
System.out.println("Total hours worked by " + name +
" (id #" + id + ") = " + sum);
}
}