![Javarevisited: How to check if String contains another SubString in Java? contains() and indexOf() example Javarevisited: How to check if String contains another SubString in Java? contains() and indexOf() example](https://3.bp.blogspot.com/-4lim03BxD6c/V_-kT0M940I/AAAAAAAAHQY/JAO5njnwhXYXQpvIXAqqQ2AY_8jv66HzwCLcB/s1600/How%2Bto%2Bcheck%2Bif%2Bone%2BString%2Bcontains%2Bother%2Bin%2BJava%2Busing%2BindexOf.jpg)
Javarevisited: How to check if String contains another SubString in Java? contains() and indexOf() example
![How to check if a string contains at least one number using regular expression (regex) in JavaScript? - DEV Community How to check if a string contains at least one number using regular expression (regex) in JavaScript? - DEV Community](https://res.cloudinary.com/practicaldev/image/fetch/s--dpEYJenu--/c_imagga_scale,f_auto,fl_progressive,h_720,q_auto,w_1280/https://melvingeorge.me/_next/static/images/main-e73d147e4831801067247fa23061d0af.jpg)
How to check if a string contains at least one number using regular expression (regex) in JavaScript? - DEV Community
![java - How do i check string to contain only letter(Uppercase & Lowercase) and at least one number only - Stack Overflow java - How do i check string to contain only letter(Uppercase & Lowercase) and at least one number only - Stack Overflow](https://i.stack.imgur.com/vOxeT.png)
java - How do i check string to contain only letter(Uppercase & Lowercase) and at least one number only - Stack Overflow
![vigenere - How to Check Whether a String Contains Non-Alphabetical Characters? - CS50 Stack Exchange vigenere - How to Check Whether a String Contains Non-Alphabetical Characters? - CS50 Stack Exchange](https://i.stack.imgur.com/hn8uL.png)
vigenere - How to Check Whether a String Contains Non-Alphabetical Characters? - CS50 Stack Exchange
![How to write a test in Java that would check if a String contains any alphabetic characters? - Stack Overflow How to write a test in Java that would check if a String contains any alphabetic characters? - Stack Overflow](https://i.stack.imgur.com/ddgZw.png)
How to write a test in Java that would check if a String contains any alphabetic characters? - Stack Overflow
![SOLVED: The method containsLetter(string s, char c) checks whether or not the string s includes c. (Don't use similar methods in Java library). The ruleChecker method gets an input of string type SOLVED: The method containsLetter(string s, char c) checks whether or not the string s includes c. (Don't use similar methods in Java library). The ruleChecker method gets an input of string type](https://cdn.numerade.com/ask_images/9c4c4719436e4388a8a474a3b2e04c01.jpg)
SOLVED: The method containsLetter(string s, char c) checks whether or not the string s includes c. (Don't use similar methods in Java library). The ruleChecker method gets an input of string type
![java - If statement that checks if a user entered string contains user entered letters excluding any extra letters - Stack Overflow java - If statement that checks if a user entered string contains user entered letters excluding any extra letters - Stack Overflow](https://i.stack.imgur.com/0J45Z.png)