com.alibaba.testable.core.util

Class CollectionUtil

java.lang.Object

com.alibaba.testable.core.util.CollectionUtil

public class CollectionUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
CollectionUtil()

Method Summary

Modifier and Type	Method and Description
static <T> boolean	contains(T[] collection, T target) Check whether target exist in collection
static <T> boolean	containsAny(Collection<T> collectionLeft, Collection<T> collectionRight) Check two collection has any equaled item
static String	joinToString(Collection<?> collection, String joinSymbol) Join a collection into string

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionUtil

public CollectionUtil()

Method Detail

joinToString

public static String joinToString(Collection<?> collection,
                                  String joinSymbol)

Join a collection into string

Parameters:

collection - many items with proper toString() method

joinSymbol - splitter of echo items

Returns:

a joined string

contains

public static <T> boolean contains(T[] collection,
                                   T target)

Check whether target exist in collection

Parameters:

collection - many items to find from

target - an item to be found

Returns:

whether target exist in collection

containsAny

public static <T> boolean containsAny(Collection<T> collectionLeft,
                                      Collection<T> collectionRight)

Check two collection has any equaled item

Parameters:

collectionLeft - the first collection

collectionRight - the second collection

Returns:

whether any equaled item found