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POSubstring - StringIndexOutOfBounds exception java
 

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  1. POSubstring - StringIndexOutOfBounds exception java
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    <p>I've been working on a program to collect data from a file and do some stuff to it (as evident in the code and pseudocode) however I'm having difficulty getting each element of the string into the right array. A line from a file looks like this: </p> <pre><code>1980 Aug 945 100 Allen </code></pre> <p>I'm wanting to use the substring method because that'd be the easiest in my opinion. Is there a better way of doing it? Here's my code thus far. Where does the problem lie exactly, and how should I fix it? Thanks! :) </p> <pre><code>import java.util.Scanner; import java.io.File; import java.io.IOException; import java.lang.String; public class Hurricanes2 { public static void main(String [] args) throws IOException { int counter = 0; String [] token = new String[1000]; String [] tokenElements = new String[128]; String [] hurricaneYear = new String[64]; String [] hurricaneName = new String[64]; String [] hurricaneMonth = new String[64]; int [] hurricaneCategory = new int[64]; double [] hurricanePressure = new double[64]; double tempKnots; double knotsToMph; double [] hurricaneWindSpeed = new double[64]; double categoryAverage; double pressureAverage; double speedAverage; String headerData = " Hurricanes 1980 - 2006\n\n Year Hurricane Category Pressure(MB) Wind Speed (MPH)\n========================================================================"; Scanner in = new Scanner(System.in); Scanner inFile = new Scanner(new File("hurcData2.txt")); System.out.println(headerData); /**---Use for-each (line:token) * Parse for year - &gt; year array * parse for name - &gt; name array * parse for knots - &gt; tempKnots * knotsToMph = tempKnots * 1.15078 * hurricaneWindSpeed[counter] = knotsToMph * enter if-else to calculate category (hurricaneCategory [] = 1,2,3,4, or 5): * 74-95 cat1 * 96-110 cat2 * 111 - 129 cat3 * 130-156 cat4 * 157 or higher cat 5 * * */ while(inFile.hasNextLine()){ token[counter] = inFile.nextLine(); String tempToken = token[counter]; hurricaneYear[counter] = tempToken.substring(0, 3); hurricaneMonth[counter] = tempToken.substring(6, 8); hurricanePressure[counter] = Double.parseDouble(tempToken.substring(10, 12)); hurricaneWindSpeed[counter] = Double.parseDouble(tempToken.substring(14, 16)); hurricaneName[counter] = tempToken.substring(17); counter++; } System.out.print("Lines: " + counter); } } </code></pre>
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    1. COuse oString.split(" ") to return an array of infos (skipping spaces)
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    2. COThat's so funny, because I JUST got rid of that line, because I thought the substring method would work better. HA! Thank you.
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