Java String Sub String substringBefore(String input, String sub)

Description

Return the substring before the first occurrence of SUB else INPUT (if substring does not occur).

License

Open Source License

Parameter

Parameter	Description
input	a parameter
sub	a parameter

Return

a String

Declaration

static public String substringBefore(String input, String sub) 

Method Source Code

//package com.java2s;
/*/*from w w w.  j a v  a2  s.  com*/
 * dalserver-interop library - implementation of DAL server for interoperability
 * Copyright (C) 2015  Diversity Arrays Technology
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    /**
     * Return the substring before the first occurrence of SUB else INPUT (if substring does not occur).
     * @param input
     * @param sub
     * @return a String
     */
    static public String substringBefore(String input, String sub) {
        int pos = input.indexOf(sub);
        if (pos < 0) {
            return input;
        }
        return input.substring(0, pos);
    }
}

Related

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