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Check AplhaNumeric Inputs

How do I confirm if an input is AplhaNumeric or only numbers or only chars ?


  • Use String.matches() method.

    if(param.matches("^[a-zA-Z]+\$")) {
        println "only chars"
    else if(param.matches("^[0-9]+\$")) {
        println "only numbers"
    else if(param.matches("^[0-9a-zA-Z]+\$")) {
        println "alphanumeric"
  • Thanks a lot.... You have saved my day :smiley:

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