chomp string from end - Android java.lang

Android examples for java.lang:String Shorten

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Description

chomp string from end

Demo Code

/*//  ww  w  .  j a va  2 s.co m
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */
 
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.text.Normalizer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.regex.Pattern;

public class Main{

    /**
     * <p>Removes {@code separator} from the end of
     * {@code str} if it's there, otherwise leave it alone.</p>
     *
     * <p>NOTE: This method changed in version 2.0.
     * It now more closely matches Perl chomp.
     * For the previous behavior, use {@link #substringBeforeLast(String, String)}.
     * This method uses {@link String#endsWith(String)}.</p>
     *
     * <pre>
     * StringUtils.chomp(null, *)         = null
     * StringUtils.chomp("", *)           = ""
     * StringUtils.chomp("foobar", "bar") = "foo"
     * StringUtils.chomp("foobar", "baz") = "foobar"
     * StringUtils.chomp("foo", "foo")    = ""
     * StringUtils.chomp("foo ", "foo")   = "foo "
     * StringUtils.chomp(" foo", "foo")   = " "
     * StringUtils.chomp("foo", "foooo")  = "foo"
     * StringUtils.chomp("foo", "")       = "foo"
     * StringUtils.chomp("foo", null)     = "foo"
     * </pre>
     *
     * @param str  the String to chomp from, may be null
     * @param separator  separator String, may be null
     * @return String without trailing separator, {@code null} if null String input
     * @deprecated This feature will be removed in Lang 4.0, use {@link StringUtils#removeEnd(String, String)} instead
     */
    @Deprecated
    public static String chomp(final String str, final String separator) {
        return removeEnd(str, separator);
    }
    public static String removeEnd(final String str, final String remove) {
        if (isEmpty(str) || isEmpty(remove)) {
            return str;
        }
        if (str.endsWith(remove)) {
            return str.substring(0, str.length() - remove.length());
        }
        return str;
    }
}

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