Java exercises: Find the index of an array element - w3resource
java.util.scanner - Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 0 at java.lang.String.charAt(String.java:658) - Stack Overflow
![IndexOf() Java Method Explained [Easy Examples] | GoLinuxCloud](https://www.golinuxcloud.com/wp-content/uploads/indexof-java--e1631072202327.png "IndexOf() Java Method Explained [Easy Examples] | GoLinuxCloud")
IndexOf() Java Method Explained [Easy Examples] | GoLinuxCloud
❤ 💻 Java - String indexOf() method example - Dirask
Java String charAt() Method examples (Find Char At a Given Index) | JavaProgramTo.com
java for complete beginners - indexof
java for complete beginners - indexof
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Java String: indexOf Method - w3resource
Java String indexOf() Example | Java indexOf() Function
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Java String indexOf() method example
Java String indexOf() Method Examples
Java String indexOf() Method with example
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