Java String Whitespace Delete deleteWhitespace(CharSequence sequence)

Description

delete Whitespace

License

Apache License

Declaration

public static String deleteWhitespace(CharSequence sequence) 

Method Source Code

//package com.java2s;
/*/*  w  ww.  j  a  va  2s.c om*/
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.
 */

public class Main {
    public static final String EMPTY = "";

    public static String deleteWhitespace(CharSequence sequence) {
        if (!hasLength(sequence)) {
            return EMPTY;
        }

        StringBuilder sb = new StringBuilder(sequence.length());
        for (int i = 0; i < sequence.length(); i++) {
            char currentChar = sequence.charAt(i);
            if (!Character.isWhitespace(currentChar)) {
                sb.append(currentChar);
            }
        }
        // return the initial String if no whitespace is found
        return (sb.length() == sequence.length() ? sequence.toString() : sb.toString());
    }

    public static boolean hasLength(CharSequence sequence) {
        return (sequence != null && sequence.length() > 0);
    }
}

Related

1. deleteWhitespace(CharSequence str)
2. deleteWhitespace(final String s)
3. deleteWhitespace(final String str)
4. deleteWhitespace(String s)