Java String Sub String substringBefore(final String string, final String separator)

Description

substring Before

License

Apache License

Declaration

public static String substringBefore(final String string,
            final String separator) 

Method Source Code

//package com.java2s;
/*//from  www. j av  a  2 s . c  o  m
 * =============================================================================
 * 
 *   Copyright (c) 2007-2010, The JASYPT team (http://www.jasypt.org)
 * 
 *   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 String substringBefore(final String string,
            final String separator) {

        if (isEmpty(string) || separator == null) {
            return string;
        }
        if (separator.length() == 0) {
            return "";
        }
        final int pos = string.indexOf(separator);
        if (pos == -1) {
            return string;
        }
        return string.substring(0, pos);

    }

    public static boolean isEmpty(final String string) {
        if (string == null || string.length() == 0) {
            return true;
        }
        return false;
    }
}

Related

1. substringAfterReturnAll(String str, String before)
2. substringAndchopLastNewline(String text, int start_pos, int end_pos)
3. subStringArray(String in[], int start, int end)
4. substringBaseName(String baseName, int extraCharsNumber)
5. substringBefore(final String str, final String separator)
6. substringBefore(String input, String sub)
7. substringBefore(String s, char c)
8. substringBefore(String str, int endChar)
9. substringBefore(String str, String separator)