com.github.paganini2008.devtools.collection

类 ListUtils

java.lang.Object

com.github.paganini2008.devtools.collection.ListUtils

public abstract class ListUtils
extends Object

ListUtils

版本:

1.0

作者:

Fred Feng

构造器概要

构造器

构造器和说明
ListUtils()

方法概要

限定符和类型	方法和说明
static <T extends Comparable<T>> void	asc(List<T> list)
static <T> List<T>	copy(List<T> src, int count)
static <T> List<T>	copy(List<T> src, int startIndex, int count)
static <T> void	copy(List<T> src, int srcFrom, List<T> dest, int destFrom, int count)
static <T> List<T>	create(T... args)
static <T extends Comparable<T>> void	desc(List<T> list)
static <T> T	get(List<T> list, int index)
static <T> T	get(List<T> list, int index, T defaultValue)
static <T> T	getFirst(List<T> list)
static <T> T	getFirst(List<T> list, T defaultValue)
static <T> T	getLast(List<T> list)
static <T> T	getLast(List<T> list, T defaultValue)
private static int	indexFor(List<?> list, int index)
static boolean	isEmpty(List<?> list)
static boolean	isList(Object obj)
static boolean	isNotEmpty(List<?> list)
static boolean	isNotList(Object obj)
static <T> List<T>	list(Enumeration<T> en)
static <T> List<T>	list(Iterator<T> it)
static <T> T	remove(List<T> list, int index)
static <T> T	removeFirst(List<T> list)
static <T> T	removeLast(List<T> list)
static <T> List<T>	reverse(Enumeration<T> en)
static <T> List<T>	reverse(Iterator<T> it)
static <T> void	reverse(List<T> list)
static <T> List<T>	slice(List<T> list, int limit)
static <T> List<T>	slice(List<T> list, int limit, int offset)
static <T> void	sort(List<T> list, Comparator<T> c)
static <T> void	swap(List<T> list, int i, int j)
static <T> List<T>	toList(Collection<T> c)
static List<String>	toStringList(Collection<?> c)
static List<String>	toStringList(Enumeration<?> e)
static List<String>	toStringList(Iterator<?> it)
static <T> List<T>	unmodifiableList(Collection<T> c)
static <T> List<T>	unmodifiableList(T... args)

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

ListUtils

public ListUtils()

方法详细资料

isList

public static boolean isList(Object obj)

isNotList

public static boolean isNotList(Object obj)

isEmpty

public static boolean isEmpty(List<?> list)

isNotEmpty

public static boolean isNotEmpty(List<?> list)

unmodifiableList

public static <T> List<T> unmodifiableList(T... args)

unmodifiableList

public static <T> List<T> unmodifiableList(Collection<T> c)

create

public static <T> List<T> create(T... args)

toList

public static <T> List<T> toList(Collection<T> c)

indexFor

private static int indexFor(List<?> list,
                            int index)

get

public static <T> T get(List<T> list,
                        int index)

get

public static <T> T get(List<T> list,
                        int index,
                        T defaultValue)

getFirst

public static <T> T getFirst(List<T> list)

getFirst

public static <T> T getFirst(List<T> list,
                             T defaultValue)

remove

public static <T> T remove(List<T> list,
                           int index)

removeFirst

public static <T> T removeFirst(List<T> list)

getLast

public static <T> T getLast(List<T> list)

getLast

public static <T> T getLast(List<T> list,
                            T defaultValue)

removeLast

public static <T> T removeLast(List<T> list)

copy

public static <T> List<T> copy(List<T> src,
                               int count)

copy

public static <T> List<T> copy(List<T> src,
                               int startIndex,
                               int count)

copy

public static <T> void copy(List<T> src,
                            int srcFrom,
                            List<T> dest,
                            int destFrom,
                            int count)

slice

public static <T> List<T> slice(List<T> list,
                                int limit)

slice

public static <T> List<T> slice(List<T> list,
                                int limit,
                                int offset)

asc

public static <T extends Comparable<T>> void asc(List<T> list)

desc

public static <T extends Comparable<T>> void desc(List<T> list)

sort

public static <T> void sort(List<T> list,
                            Comparator<T> c)

list

public static <T> List<T> list(Iterator<T> it)

list

public static <T> List<T> list(Enumeration<T> en)

reverse

public static <T> List<T> reverse(Iterator<T> it)

reverse

public static <T> List<T> reverse(Enumeration<T> en)

reverse

public static <T> void reverse(List<T> list)

swap

public static <T> void swap(List<T> list,
                            int i,
                            int j)

toStringList

public static List<String> toStringList(Collection<?> c)

toStringList

public static List<String> toStringList(Iterator<?> it)

toStringList

public static List<String> toStringList(Enumeration<?> e)