![Manipulating Characters in a String (The Java™ Tutorials > Learning the Java Language > Numbers and Strings) Manipulating Characters in a String (The Java™ Tutorials > Learning the Java Language > Numbers and Strings)](https://docs.oracle.com/javase/tutorial/figures/java/objects-lastIndexOf.gif)
Manipulating Characters in a String (The Java™ Tutorials > Learning the Java Language > Numbers and Strings)
![Count the Number of Occurrences of Substring in a String - Java Program to Count the Number of - Studocu Count the Number of Occurrences of Substring in a String - Java Program to Count the Number of - Studocu](https://d20ohkaloyme4g.cloudfront.net/img/document_thumbnails/accbfcaf35ffda1e2ef3f19321d76d0b/thumb_1200_1698.png)
Count the Number of Occurrences of Substring in a String - Java Program to Count the Number of - Studocu
![Efficient Substring Search in Java: How to Check if a String Contains a Substring | by Egemen Sener Mustafa | Medium Efficient Substring Search in Java: How to Check if a String Contains a Substring | by Egemen Sener Mustafa | Medium](https://miro.medium.com/v2/resize:fit:1400/1*X0E8ve-h9b6Zi7dZaTsLsA.png)
Efficient Substring Search in Java: How to Check if a String Contains a Substring | by Egemen Sener Mustafa | Medium
![How to Check if a String Contains a Substring? indexOf(), contains() and custom implementation • Crunchify How to Check if a String Contains a Substring? indexOf(), contains() and custom implementation • Crunchify](https://crunchify.com/wp-content/uploads/2013/03/How-to-Check-if-a-String-Contains-a-Substring.png)