Java Binary to Int binToDec(String str)

Description

bin To Dec

License

Apache License

Declaration

public static int binToDec(String str) 

Method Source Code

//package com.java2s;
/*/*from  w  w  w.j ava 2s . c o  m*/
 *
 *  Copyright 2018 FJN Corp.
 *
 *  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.
 *
 *  Author                        Date                       Issue
 *  fs1194361820@163.com          2015-01-01                 Initial Version
 *
 */

public class Main {

    public static int binToDec(String str) {
        int result = 0;
        for (int i = 0; i < str.length(); i++) {
            if (str.charAt(i) != '0' && str.charAt(i) != '1') {
                return -1;
            }
            result = result * 2 + str.charAt(i) - '0';
        }
        return result;
    }
}

Related

1. bin2int(byte[] array, int offset)
2. binaryToInt(String binary, int intlength)
3. binaryToInt(String binaryValue, boolean signIncluded)
4. binaryToLong(String bin)
5. boolean2integer(boolean b)
6. boolean2integer(boolean b)