Java StringBuilder: How to Use the indexOf(String str) Method | Java Tutorial Channel: Ram N Java283 views • 02/05/2016Related VideosJava StringBuilder indexOf(String str, int fromIndex) Method Explained | Java TutorialJava String Access Methods - length charAt substring indexOf - Java Programming Tutorial - AppficialJava StringBuilder: How to use lastIndexOf(String str, int fromIndex) method | Java TutorialJava StringBuilder: Adding Strings with append(String str) Method | Java Tutorial