com.elephantdrummer.validator.IValidatorIsNumber Maven / Gradle / Ivy
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Elephant Drummer Java Job Scheduler
package com.elephantdrummer.validator;
/**
* Copyright 2018 Elephant Software Klaudiusz Wojtkowiak e-mail: [email protected]
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
public interface IValidatorIsNumber {
public static boolean isNumber(String str) {
String s = str.trim();
for (int i = 0; i < s.length(); i++) {
// If we find a non-digit character we return false.
if (!Character.isDigit(s.charAt(i))&&(s.charAt(i)=='.')==false&&(s.charAt(i)=='-')==false)
return false;
}
return true;
}
}