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POI keep getting a String out of bounds error, can someone help fix my code?
 

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  1. POI keep getting a String out of bounds error, can someone help fix my code?
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    <p>The error is String index out of range: 0. I honestly don't even know if what I'm doing is right in the first place.</p> <p>I have to create an entireName method and an initial method. Their names speak for themselves, pretty much entireName prints out the name depending on what the user gives me. If they only gave me a first and last name then that is all I would return.</p> <p>Initials is the same bit. It takes the first letter from the name input and only returns the initials. like John Lee Smith would be J.L.S.</p> <p>Can anyone help me to understand what is wrong? If you can't tell I'm only a beginner.</p> <p>I have a tester program that returns the error java.lang.StringIndexoutofboundexception: String index out of Range: 0 at java.lang.String.charAt(String.java:658) at PersonName.Initials(PersonName.java:131) atTestPersonName2.testOneName(TestPersonName2.java:50)</p> <pre><code>import java.util.StringTokenizer; public class PersonName { private int numberOfNames ; private String firstName; private String middleName; private String lastName; private String suffixName; PersonName(){ firstName=""; middleName=""; lastName=""; suffixName=""; numberOfNames=0; } public String getFirstName(){ return firstName; } public String getMiddleName(){ return middleName; } public String getLastName(){ return lastName; } public String getSuffixName(){ return suffixName; } public void setFirstName(String f){ if((f.length() == 0) &amp;&amp; (firstName.length() == 0)){ numberOfNames = numberOfNames; }else if(( f.length() &gt; 0) &amp;&amp; (firstName.length() == 0)){ numberOfNames++; } firstName = f; } public void setMiddleName(String m){ if((m.length() == 0) &amp;&amp; (middleName.length() == 0)){ numberOfNames = numberOfNames; }else if(( m.length() &gt; 0) &amp;&amp; (middleName.length() == 0)){ numberOfNames++; } middleName = m; } public void setLastName(String l){ if((l.length() == 0) &amp;&amp; (lastName.length() == 0)){ numberOfNames = numberOfNames; }else if(( l.length() &gt; 0) &amp;&amp; (lastName.length() == 0)){ numberOfNames++; } lastName = l; } public void setSuffixName(String s){ if((s.length() == 0) &amp;&amp; (suffixName.length() == 0)){ numberOfNames = numberOfNames; }else if(( s.length() &gt; 0) &amp;&amp; (suffixName.length() == 0)){ numberOfNames++; } suffixName = s; } public int getNumberOfNames(){ return numberOfNames; } PersonName(String wholename) { firstName=""; middleName=""; lastName=""; suffixName=""; numberOfNames=0; // store the name passed in to the method final int MAXNAMES = 4; String [] words = new String [MAXNAMES]; String testname=wholename; // initialize number of names found int numnames=0; // on each iteration remove one name StringTokenizer st = new StringTokenizer(wholename); while (st.hasMoreTokens()) { words[numnames++]=st.nextToken(); } if (numnames ==1) { setFirstName(words[0]);} else if (numnames == 2) { setFirstName(words[0]); setLastName(words[1]); } else if (numnames == 3) { setFirstName(words[0]); setMiddleName(words[1]); setLastName(words[2]); } else if (numnames == 4) { setFirstName(words[0]); setMiddleName(words[1]); setLastName(words[2]); setSuffixName(words[3]); } } public String EntireName(){ String EntireName = " "; //String EntireName = getFirstName() + " " + getMiddleName() + " " + getLastName() + " " + getSuffixName(); if(getNumberOfNames() == 0){ EntireName = " "; }else if(getNumberOfNames() == 1){ EntireName = getFirstName(); }else if(getNumberOfNames() == 2){ EntireName = getFirstName() + " " + getMiddleName(); }else if(getNumberOfNames() == 3){ EntireName = getFirstName() + " " + getMiddleName() + " " + getLastName(); }else { EntireName = getFirstName() + " " + getMiddleName() + " " + getLastName() + " " + getSuffixName(); } return EntireName; } public String Initials(){ String f = getFirstName(); char fChar = f.charAt(0); String m = getMiddleName(); char mChar = m.charAt(0); String l = getLastName(); char lChar = l.charAt(0); String s = getSuffixName(); char sChar = s.charAt(0); String initial = " "; if(getNumberOfNames() == 0){ initial = " "; }else if(getNumberOfNames() == 1){ initial = fChar + "."; }else if(getNumberOfNames() == 2){ initial = fChar + "." + mChar + "."; }else if(getNumberOfNames() == 3){ initial = fChar + "." + mChar + "." + lChar + "."; } //String initial = fChar + "." + mChar + "." + lChar ; return initial; } } </code></pre>
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    1. COWhat is the line that throws the Exception? Have you even tried to debug yourself?
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      1. POI keep getting a String out of bounds error, can someone help fix my code?
      1. USnhahtdh
    2. COI've been working on this for hours, so yes I've tried debugging. I have a tester program that returns the error java.lang.StringIndexoutofboundexception: String index out of Range: 0 at java.lang.String.charAt(String.java:658) at PersonName.Initials(PersonName.java:131) atTestPersonName2.testOneName(TestPersonName2.java:50)
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      1. POI keep getting a String out of bounds error, can someone help fix my code?
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    3. COpost the code that causes the error, as well as the error message, in order that we may help you find the cause.
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      1. POI keep getting a String out of bounds error, can someone help fix my code?
      1. USJakob Weisblat
 

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