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POFix an error? Reading from File
 

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  1. POFix an error? Reading from File
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    <p><strong>My output is:</strong></p> <blockquote> <p>IKE Dinner 25.00 04/15/1993</p> <p>HUNTER Dinner 50.00 DATE1</p> <p>STEVE Lodging 25.00 DATE2</p> <p>ROY Lodging 50.00 DATE3</p> <p>MAX Conference 25.00 DATE4File contents invalid.</p> </blockquote> <p><strong>How do I fix the error? It is reading from the file "hotel" with contents:</strong> </p> <blockquote> <p>IKE;Dinner;25.00;04/15/1993;</p> <p>HUNTER;Dinner;50.00;DATE1;</p> <p>STEVE;Lodging;25.00;DATE2;</p> <p>ROY;Lodging;50.00;DATE3;</p> <p>MAX;Conference;25.00;DATE4;</p> </blockquote> <p><strong>Expected Output:</strong></p> <blockquote> <p>IKE Dinner 25.00 04/15/1993</p> <p>HUNTER Dinner 50.00 DATE1</p> <p>STEVE Lodging 25.00 DATE2</p> <p>ROY Lodging 50.00 DATE3</p> <p>MAX Conference 25.00 DATE4</p> <p>Dinner: TOTAL Conference: TOTAL Lodging: TOTAL</p> </blockquote> <p><strong>CODE</strong></p> <pre><code>import java.io.File; import java.io.FileNotFoundException; import java.util.NoSuchElementException; import java.util.Scanner; public class P7Point16 { public static void main(String[] args) { double dinner = 0; double conference = 0; double lodging = 0; String name = null, service = null, amount = null, date = null; File file = new File( "DIRECTORY\\src\\hotel"); Scanner read = null; try { read = new Scanner(file); read.useDelimiter(";"); while (read.hasNextLine()) { if(read.hasNext()) { name = read.next(); service = read.next(); amount = read.next(); date = read.next(); if (service.equalsIgnoreCase("Lodging")) { lodging += Double.parseDouble(amount); } else if (service.equalsIgnoreCase("Conference")) { conference += Double.parseDouble(amount); } else if (service.equalsIgnoreCase("Dinner")) { dinner += Double.parseDouble(amount); } System.out.print(name + " " + service + " " + amount + " " + date); } } System.out.println(""); System.out.println("Dinner: " + dinner + " Conference: " + conference + " Lodging: " + lodging); } catch (FileNotFoundException exception) { System.out.println("File not found."); } catch (NoSuchElementException exception) { System.out.println("File contents invalid."); } finally { read.close(); } } } </code></pre> <p><strong>WORKING CODE</strong></p> <pre><code>import java.io.File; import java.io.FileNotFoundException; import java.util.NoSuchElementException; import java.util.Scanner; public class P7Point16 { public static void main(String[] args) { double dinner = 0; double conference = 0; double lodging = 0; String name = null, service = null, amount = null, date = null; File file = new File( "DIRECTORY\\src\\hotel"); Scanner read = null; try { read = new Scanner(file); read.useDelimiter(";"); while (read.hasNext()) { name = read.next(); service = read.next(); amount = read.next(); date = read.next(); if (service.equalsIgnoreCase("Lodging")) { lodging += Double.parseDouble(amount); } else if (service.equalsIgnoreCase("Conference")) { conference += Double.parseDouble(amount); } else if (service.equalsIgnoreCase("Dinner")) { dinner += Double.parseDouble(amount); } System.out.print(name + " " + service + " " + amount + " " + date); } System.out.println(""); System.out.println("Dinner: " + dinner + " Conference: " + conference + " Lodging: " + lodging); } catch (FileNotFoundException exception) { System.out.println("File not found."); } catch (NoSuchElementException exception) { System.out.println("File contents invalid."); } finally { read.close(); } } } </code></pre>
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    1. COWhat output do you expect?
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    2. COAdded output expected
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    3. COWhen posting code online you should not post the absolute directory. I was always advised to do something along the lines of `"..//location"`. Just a safety precaution.
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      1. USRob
 

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