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Adding extra javadoc to point out that usually indexOf on an empty String == -1. LANG-589 

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@907561 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Henri Yandell 2010-02-08 06:57:34 +00:00
parent 10cc16fe82
commit 1b5c1b4371
1 changed files with 2 additions and 0 deletions
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2
src/main/java/org/apache/commons/lang3/StringUtils.java
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@ -794,6 +794,7 @@ public static int indexOf(String str, char searchChar, int startPos) {
* StringUtils.indexOf(null, *) = -1
* StringUtils.indexOf(*, null) = -1
* StringUtils.indexOf("", "") = 0
* StringUtils.indexOf("", *) = -1 (except when * = "")
* StringUtils.indexOf("aabaabaa", "a") = 0
* StringUtils.indexOf("aabaabaa", "b") = 2
* StringUtils.indexOf("aabaabaa", "ab") = 1
@ -827,6 +828,7 @@ public static int indexOf(String str, String searchStr) {
* StringUtils.indexOf(null, *, *) = -1
* StringUtils.indexOf(*, null, *) = -1
* StringUtils.indexOf("", "", 0) = 0
* StringUtils.indexOf("", *, 0) = -1 (except when * = "")
* StringUtils.indexOf("aabaabaa", "a", 0) = 0
* StringUtils.indexOf("aabaabaa", "b", 0) = 2
* StringUtils.indexOf("aabaabaa", "ab", 0) = 1