package com.baeldung.stringisnumeric; import org.apache.log4j.Logger; public class IsNumericDriver { private static IsNumeric isNumeric; private static Logger LOG = Logger.getLogger(IsNumericDriver.class); static { isNumeric =new IsNumeric(); } public static void main(String[] args) { LOG.info("Testing all methods..."); boolean res = isNumeric.usingCoreJava("1001"); LOG.info("Using Core Java : " + res); res = isNumeric.usingRegularExpressions("1001"); LOG.info("Using Regular Expressions : " + res); res =isNumeric.usingNumberUtils_isCreatable("1001"); LOG.info("Using NumberUtils.isCreatable : " + res); res =isNumeric.usingNumberUtils_isParsable("1001"); LOG.info("Using NumberUtils.isParsable : " + res); res =isNumeric.usingStringUtils_isNumeric("1001"); LOG.info("Using StringUtils.isNumeric : " + res); res =isNumeric.usingStringUtils_isNumericSpace("1001"); LOG.info("Using StringUtils.isNumericSpace : " + res); } }