Android String Strip stripPrefix(String str, String prefix)

Description

Give me a string and a potential prefix, and I return the string following the prefix if the prefix matches, else null.

License

Apache License

Parameter

Parameter	Description
str	the string to strip
prefix	the expected prefix

Return

the stripped string or null if the string does not start with the prefix

Declaration

public static String stripPrefix(String str, String prefix)

Method Source Code

//package com.java2s;
/**/*from   ww  w  . jav  a 2  s  .  co  m*/
 * Copyright (c) 2000, Google Inc.
 *
 * 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 {
    /**
     * Give me a string and a potential prefix, and I return the string
     * following the prefix if the prefix matches, else null.
     * Analogous to the c++ functions strprefix and var_strprefix.
     *
     * @param str the string to strip
     * @param prefix the expected prefix
     * @return the stripped string or <code>null</code> if the string
     * does not start with the prefix
     */
    public static String stripPrefix(String str, String prefix) {
        return str.startsWith(prefix) ? str.substring(prefix.length())
                : null;
    }
}