SyntaxFix

[java] How to create a regex for accepting only alphanumeric characters?

Try below Alphanumeric regex

"^[a-zA-Z0-9]*$"

^ - Start of string

[a-zA-Z0-9]* - multiple characters to include

$ - End of string

See more: http://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html

Examples related to java

• Under what circumstances can I call findViewById with an Options Menu / Action Bar item? • How much should a function trust another function • How to implement a simple scenario the OO way • Two constructors • How do I get some variable from another class in Java? • this in equals method • How to split a string in two and store it in a field • How to do perspective fixing? • String index out of range: 4 • My eclipse won't open, i download the bundle pack it keeps saying error log

Examples related to regex

• Why my regexp for hyphenated words doesn't work? • grep's at sign caught as whitespace • Preg_match backtrack error • regex match any single character (one character only) • re.sub erroring with "Expected string or bytes-like object" • Only numbers. Input number in React • Visual Studio Code Search and Replace with Regular Expressions • Strip / trim all strings of a dataframe • return string with first match Regex • How to capture multiple repeated groups?