Android String Null Convert defaultIfBlank(String str)

Description

default If Blank

License

Apache License

Declaration

public static String defaultIfBlank(String str) 

Method Source Code

//package com.java2s;
/**/*  w  w w.ja v  a2 s  .c om*/
 * Copyright 2013 ??????
 *
 * 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 final String EMPTY = "";

    public static String defaultIfBlank(String str, String defaultStr) {
        return isBlank(str) ? defaultStr : str;
    }

    public static String defaultIfBlank(String str) {
        return defaultIfBlank(str, EMPTY);
    }

    public static boolean isBlank(String str) {
        if (str == null) {
            return true;
        }
        int strLen = str.length();
        if (strLen > 0) {
            for (int i = 0; i < strLen; i++) {
                if (Character.isWhitespace(str.charAt(i)) == false) {
                    return false;
                }
            }
        }
        return true;
    }
}

Related

1. toStrNotNull(Object obj, String defaultStr)
2. convertToNull(String chaine)
3. defaultIfNull(String str)
4. defaultIfNull(String str, String defaultStr)
5. defaultIfBlank(String str, String defaultStr)
6. isEmptyOrWhitespaceOnly(String str)
7. toStringWhenNull(Object src, String newValue)
8. toStringWhenNullOrEmpty(Object src, String newValue)
9. toStringWhenNullOrEmptyOrSpace(Object src, String newValue)