com.meizu.push.sdk.utils

类 CollectionUtils

java.lang.Object

com.meizu.push.sdk.utils.CollectionUtils

public class CollectionUtils
extends Object

Created by wangxinguo on 2016-8-23.

构造器概要

构造器

构造器和说明
CollectionUtils()

方法概要

限定符和类型	方法和说明
static boolean	isEmpty(Collection collection) Return true if the supplied Collection is null or empty.
static boolean	isEmpty(Map map) Return true if the supplied Map is null or empty.
static String	list2Str(List<String> strList) 将List中的数据组成用逗号分隔的字符串，如a,b,c

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

CollectionUtils

public CollectionUtils()

方法详细资料

isEmpty

public static boolean isEmpty(Collection collection)

Return true if the supplied Collection is null or empty. Otherwise, return false.

参数:

collection - the Collection to check

返回:

whether the given Collection is empty

isEmpty

public static boolean isEmpty(Map map)

Return true if the supplied Map is null or empty. Otherwise, return false.

参数:

map - the Map to check

返回:

whether the given Map is empty

list2Str

public static String list2Str(List<String> strList)

将List中的数据组成用逗号分隔的字符串，如a,b,c

参数:

strList -

返回: