Java Integer Create toInt(String value)

Description

Converts a string into an int.

License

Open Source License

Parameter

Parameter	Description
value	The value as string

Return

The int value

Declaration

public static int toInt(String value) 

Method Source Code

//package com.java2s;
/*/*from   w  w w. ja  v  a  2  s.c  o m*/
 * $Id$
 * Copyright (C) 2006 Klaus Reimer <k@ailis.de>
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

public class Main {
    /**
     * Converts a string into an int. The string can be written in hexadecimal
     * (0x prefix), binary (b suffix) or decimal. If value is null then 0 is
     * returned. If value is not parsable then a NumberFormatException is
     * thrown.
     * 
     * @param value
     *            The value as string
     * @return The int value
     */

    public static int toInt(String value) {
        // NULL is 0
        if (value == null) {
            return 0;
        }

        // Parse hexadecimal value
        if (value.startsWith("0x")) {
            return Integer.parseInt(value.substring(2), 16);
        }

        // Parse binary value
        if (value.endsWith("b")) {
            return Integer.parseInt(value.substring(0, value.length() - 1), 2);
        }

        // Parse decimal value
        return Integer.parseInt(value);
    }
}

Related

1. toInt(String string)
2. toInt(String string, int defaultValue)
3. toInt(String string, int defaultValue)
4. toInt(String text, int defaultValue)
5. toInt(String v, int def)
6. toInt(String value)
7. toInt(String value)
8. toInt(String value)
9. toInt(String value)