Android String to Int Convert isNumber(final String s)

Description

is Number

License

Apache License

Declaration

public static boolean isNumber(final String s) 

Method Source Code

//package com.java2s;
/*/*w w w  .  j av  a  2s  . com*/
 * Copyright 2004-2011 the Seasar Foundation and the Others.
 *
 * 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 class Main {

    public static boolean isNumber(final String s) {
        if (s == null || s.length() == 0) {
            return false;
        }

        int size = s.length();
        for (int i = 0; i < size; i++) {
            char chr = s.charAt(i);
            if (chr < '0' || '9' < chr) {
                return false;
            }
        }

        return true;
    }
}

Related

1. isNullOrWhiteSpace(final String string)
2. isNum(String s)
3. isNumber(String str)
4. isNumber(String str)
5. isNumber(String str)
6. isNumberString(String input)
7. isNumberic(String str)
8. toInt(Object obj)
9. toInt(String obj)