net.covers1624.quack.collection

Class ColUtils

java.lang.Object

net.covers1624.quack.collection.ColUtils

public class ColUtils
extends java.lang.Object

Various Collection Utilities for Iterables and Arrays. Created by covers1624 on 5/08/18.

Constructor Summary

Constructors

Constructor and Description
ColUtils()

Method Summary

Modifier and Type	Method and Description
static <T> boolean	exists(java.lang.Iterable<T> col, java.util.function.Predicate<T> func)
static <T> java.util.Optional<T>	find(java.lang.Iterable<T> col, java.util.function.Predicate<T> func)
static <T> boolean	forAll(java.lang.Iterable<T> col, java.util.function.Predicate<T> func)
static <T> boolean	forAll(T[] col, java.util.function.Predicate<T> func)
static <T> T	head(java.lang.Iterable<T> col)
static <T> java.util.Optional<T>	headOption(java.lang.Iterable<T> col)
static <T> T	maxBy(java.lang.Iterable<T> col, java.util.function.ToIntFunction<T> func)
static <T> T	maxBy(T[] col, java.util.function.ToIntFunction<T> func)
static java.lang.String	mkString(java.lang.Iterable<?> col, java.lang.String start, java.lang.String sep, java.lang.String end, java.util.function.Function<java.lang.Object,java.lang.String> func)
static java.lang.String	mkString(java.lang.Iterable<java.lang.String> col)
static java.lang.String	mkString(java.lang.Iterable<java.lang.String> col, java.lang.String sep)
static java.lang.String	mkString(java.lang.Iterable<java.lang.String> col, java.lang.String start, java.lang.String sep, java.lang.String end)
static java.lang.String	mkString(java.lang.Object[] col, java.lang.String start, java.lang.String sep, java.lang.String end, java.util.function.Function<java.lang.Object,java.lang.String> func)
static java.lang.String	mkString(java.lang.String[] array)
static java.lang.String	mkString(java.lang.String[] array, java.lang.String sep)
static java.lang.String	mkString(java.lang.String[] array, java.lang.String start, java.lang.String sep, java.lang.String end)
static <T> T[]	slice(T[] arr, int from, int until)
static java.lang.String	toString(java.lang.Iterable<?> col)
static java.lang.String	toString(java.lang.Object[] col)

Methods inherited from class java.lang.Object

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

Constructor Detail

ColUtils

public ColUtils()

Method Detail

toString

public static java.lang.String toString(java.lang.Iterable<?> col)

toString

public static java.lang.String toString(java.lang.Object[] col)

mkString

public static java.lang.String mkString(java.lang.String[] array)

mkString

public static java.lang.String mkString(java.lang.String[] array,
                                        java.lang.String sep)

mkString

public static java.lang.String mkString(java.lang.String[] array,
                                        java.lang.String start,
                                        java.lang.String sep,
                                        java.lang.String end)

mkString

public static java.lang.String mkString(java.lang.Iterable<java.lang.String> col)

mkString

public static java.lang.String mkString(java.lang.Iterable<java.lang.String> col,
                                        java.lang.String sep)

mkString

public static java.lang.String mkString(java.lang.Iterable<java.lang.String> col,
                                        java.lang.String start,
                                        java.lang.String sep,
                                        java.lang.String end)

mkString

public static java.lang.String mkString(java.lang.Object[] col,
                                        java.lang.String start,
                                        java.lang.String sep,
                                        java.lang.String end,
                                        java.util.function.Function<java.lang.Object,java.lang.String> func)

mkString

public static java.lang.String mkString(java.lang.Iterable<?> col,
                                        java.lang.String start,
                                        java.lang.String sep,
                                        java.lang.String end,
                                        java.util.function.Function<java.lang.Object,java.lang.String> func)

slice

public static <T> T[] slice(T[] arr,
                            int from,
                            int until)

maxBy

public static <T> T maxBy(T[] col,
                          java.util.function.ToIntFunction<T> func)

maxBy

public static <T> T maxBy(java.lang.Iterable<T> col,
                          java.util.function.ToIntFunction<T> func)

forAll

public static <T> boolean forAll(T[] col,
                                 java.util.function.Predicate<T> func)

forAll

public static <T> boolean forAll(java.lang.Iterable<T> col,
                                 java.util.function.Predicate<T> func)

exists

public static <T> boolean exists(java.lang.Iterable<T> col,
                                 java.util.function.Predicate<T> func)

find

public static <T> java.util.Optional<T> find(java.lang.Iterable<T> col,
                                             java.util.function.Predicate<T> func)

headOption

public static <T> java.util.Optional<T> headOption(java.lang.Iterable<T> col)

head

public static <T> T head(java.lang.Iterable<T> col)