Android String Empty Check isEmpty(String input)

Description

is Empty

License

Apache License

Declaration

public static boolean isEmpty(String input) 

Method Source Code

//package com.java2s;
/*//from  w w  w  . ja v a  2s  .  c  om
 * Copyright (C) 2013  WhiteCat ?? (www.thinkandroid.cn)
 *
 * 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 boolean isEmpty(String input) {
        if (input == null || "".equals(input))
            return true;

        for (int i = 0; i < input.length(); i++) {
            char c = input.charAt(i);
            if (c != ' ' && c != '\t' && c != '\r' && c != '\n') {
                return false;
            }
        }
        return true;
    }
}

Related

1. isNullOrEmpty(CharSequence any)
2. isNullOrEmpty(String s)
3. emptyOrNull(String str)
4. emptyOrNull(String... arrStr)
5. isBlank(String str)
6. isNotNull(String str)
7. stringBlank(String s)
8. stringNull(String s)