Android String Array Search containsOnlyWhiteSpaces( final Collection values)

Description

contains Only White Spaces

License

Open Source License

Declaration

public static boolean containsOnlyWhiteSpaces(
            final Collection<String> values) 

Method Source Code

//package com.java2s;
/*/*from   ww w .  jav  a  2 s.c  o m*/
 * Copyright (C) 2009 The Android Open Source Project
 *
 * 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.
 */

import android.text.TextUtils;

import java.util.Arrays;
import java.util.Collection;

public class Main {
    public static boolean containsOnlyWhiteSpaces(final String... values) {
        if (values == null) {
            return true;
        }
        return containsOnlyWhiteSpaces(Arrays.asList(values));
    }

    public static boolean containsOnlyWhiteSpaces(
            final Collection<String> values) {
        if (values == null) {
            return true;
        }
        for (final String str : values) {
            if (TextUtils.isEmpty(str)) {
                continue;
            }
            final int length = str.length();
            for (int i = 0; i < length; i = str.offsetByCodePoints(i, 1)) {
                if (!Character.isWhitespace(str.codePointAt(i))) {
                    return false;
                }
            }
        }
        return true;
    }
}

Related

1. indexOf(String[] datas, String val)
2. indexOf(String[] datas, String val)
3. in(String needle, String... haystack)
4. containsOnlyAlphaDigitHyphen( final Collection values)