com.fr.common.util

类 Collections

java.lang.Object

com.fr.common.util.Collections

public class Collections
extends java.lang.Object

作者:

Daniel Bechler

方法概要

方法

限定符和类型	方法和说明
static <T> boolean	containsAny(java.lang.Iterable<T> haystack, java.lang.Iterable<T> needles)
static <T> java.util.Collection<? extends T>	filteredCopyOf(java.util.Collection<? extends T> source, java.util.Collection<? extends T> filter)
static <T> T	firstElementOf(java.util.Collection<? extends T> items)
static boolean	isEmpty(java.util.Collection<?> c)
static <T> java.util.Set<T>	setOf(java.util.Collection<T> c)

从类继承的方法 java.lang.Object

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

方法详细资料

setOf

public static <T> java.util.Set<T> setOf(java.util.Collection<T> c)

isEmpty

public static boolean isEmpty(java.util.Collection<?> c)

containsAny

public static <T> boolean containsAny(java.lang.Iterable<T> haystack,
                      java.lang.Iterable<T> needles)

filteredCopyOf

public static <T> java.util.Collection<? extends T> filteredCopyOf(java.util.Collection<? extends T> source,
                                                   java.util.Collection<? extends T> filter)

firstElementOf

public static <T> T firstElementOf(java.util.Collection<? extends T> items)