Java String Empty isEmpty(String str)

Description

is Empty

License

Apache License

Declaration

public static boolean isEmpty(String str) 

Method Source Code

//package com.java2s;
/**//from w w w  .jav  a 2 s  . c  om
 * 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.util.List;

public class Main {
    public static boolean isEmpty(String str) {
        if (str != null) {
            int len = str.length();
            for (int x = 0; x < len; ++x) {
                if (str.charAt(x) > ' ') {
                    return false;
                }
            }
        }
        return true;
    }

    public static boolean isEmpty(List<String> list) {
        if (list == null || list.size() == 0) {
            return true;
        }
        return list.size() == 1 && isEmpty(list.get(0));
    }
}

Related

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2. isAnyEmpty(String... sAry)
3. isEmpty(String input)
4. isEmpty(String param)
5. isEmpty(String sTest_)
6. isEmpty(String str)
7. isEmpty(String str)
8. isEmpty(String text)
9. isEmptyturnlane(String turns)