![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
![I want to check if in a column of strings I have one of these categories: only numbers, a mix of numbers and characters, or only characters - KNIME Extensions - KNIME I want to check if in a column of strings I have one of these categories: only numbers, a mix of numbers and characters, or only characters - KNIME Extensions - KNIME](https://forum-cdn.knime.com/uploads/default/original/3X/3/b/3bcf9e71f5ecf6518cdacbbfaf0055a2fb05035a.png)
I want to check if in a column of strings I have one of these categories: only numbers, a mix of numbers and characters, or only characters - KNIME Extensions - KNIME
![How to check string contains abc, string does not start with number and string contains 3 letters? - YouTube How to check string contains abc, string does not start with number and string contains 3 letters? - YouTube](https://i.ytimg.com/vi/I_Rh_fSn1Uk/maxresdefault.jpg)
How to check string contains abc, string does not start with number and string contains 3 letters? - YouTube
![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)