fj.function

Class Integers

java.lang.Object

fj.function.Integers

public final class Integers
extends java.lang.Object

Curried functions over Integers.

Field Summary

Fields

Modifier and Type	Field and Description
static F<java.lang.Integer,java.lang.Integer>	abs Absolute value.
static F<java.lang.Integer,F<java.lang.Integer,java.lang.Integer>>	add Curried Integer addition.
static F<java.lang.Integer,java.lang.Boolean>	even Evenness.
static F<java.lang.Integer,java.lang.Boolean>	gteZero A function that returns true if the given integer is greater than or equal to zero.
static F<java.lang.Integer,java.lang.Boolean>	gtZero A function that returns true if the given integer is greater than zero.
static F<java.lang.Integer,java.lang.Boolean>	lteZero A function that returns true if the given integer is less than or equal to zero.
static F<java.lang.Integer,java.lang.Boolean>	ltZero A function that returns true if the given integer is less than zero.
static F<java.lang.Integer,F<java.lang.Integer,java.lang.Integer>>	multiply Curried Integer multiplication.
static F<java.lang.Integer,java.lang.Integer>	negate Negation.
static F<java.lang.Integer,F<java.lang.Integer,java.lang.Integer>>	power Power.
static F<java.lang.Integer,F<java.lang.Integer,java.lang.Integer>>	remainder Remainder.
static F<java.lang.Integer,F<java.lang.Integer,java.lang.Integer>>	subtract Curried Integer subtraction.

Method Summary

Modifier and Type	Method and Description
static F<java.lang.String,Option<java.lang.Integer>>	fromString() A function that converts strings to integers.
static int	product(List<java.lang.Integer> ints) Returns the product of a list of integers.
static int	sum(List<java.lang.Integer> ints) Sums a list of integers.

Methods inherited from class java.lang.Object

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

Field Detail

add

public static final F<java.lang.Integer,F<java.lang.Integer,java.lang.Integer>> add

Curried Integer addition.

multiply

public static final F<java.lang.Integer,F<java.lang.Integer,java.lang.Integer>> multiply

Curried Integer multiplication.

subtract

public static final F<java.lang.Integer,F<java.lang.Integer,java.lang.Integer>> subtract

Curried Integer subtraction.

negate

public static final F<java.lang.Integer,java.lang.Integer> negate

Negation.

abs

public static final F<java.lang.Integer,java.lang.Integer> abs

Absolute value.

remainder

public static final F<java.lang.Integer,F<java.lang.Integer,java.lang.Integer>> remainder

Remainder.

power

public static final F<java.lang.Integer,F<java.lang.Integer,java.lang.Integer>> power

Power.

even

public static final F<java.lang.Integer,java.lang.Boolean> even

Evenness.

gtZero

public static final F<java.lang.Integer,java.lang.Boolean> gtZero

A function that returns true if the given integer is greater than zero.

gteZero

public static final F<java.lang.Integer,java.lang.Boolean> gteZero

A function that returns true if the given integer is greater than or equal to zero.

ltZero

public static final F<java.lang.Integer,java.lang.Boolean> ltZero

A function that returns true if the given integer is less than zero.

lteZero

public static final F<java.lang.Integer,java.lang.Boolean> lteZero

A function that returns true if the given integer is less than or equal to zero.

Method Detail

sum

public static int sum(List<java.lang.Integer> ints)

Sums a list of integers.

Parameters:

ints - A list of integers to sum.

Returns:

The sum of the integers in the list.

product

public static int product(List<java.lang.Integer> ints)

Returns the product of a list of integers.

Parameters:

ints - A list of integers to multiply together.

Returns:

The product of the integers in the list.

fromString

public static F<java.lang.String,Option<java.lang.Integer>> fromString()

A function that converts strings to integers.

Returns:

A function that converts strings to integers.