Package com.pnfsoftware.jeb.util.primitives

Class Integers

java.lang.Object

com.pnfsoftware.jeb.util.primitives.Integers

public class Integers
extends Object

Utility methods for ints

Constructor Summary

Constructors

Constructor	Description
Integers()

Method Summary

Modifier and Type	Method	Description
static String	formatHexIntegerCollection(Collection<Integer> list)	Format a collection of ints.
static String	formatIntegerCollection(Collection<Integer> collection, Integer radix, String pfx, String sfx)	Format a collection of ints.
static String	formatIntegerCollection(Collection<Integer> collection, Integer radix, String pfx, String sfx, String separator)
static Integer	max(Collection<Integer> c)
static Integer	min(Collection<Integer> c)
static Iterable<Integer>	range(int cnt)	Generate an incremental range of integers from 0 to the provided count.
static Iterable<Integer>	range(int start, int end)	Generate an incremental range of integers.
static Iterable<Integer>	range(int start, int end, int step)	Generate an iterable range of integers.
static int	safeInt(Integer v)	Safe unbox an Integer to zero when null.
static Integer	safeInt(Integer v, int defaultValue)	Safe unbox an Integer to defaultValue when null.
static String	toUnsignedString(int value)

Methods inherited from class java.lang.Object

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

Constructor Details

Integers

public Integers()

Method Details

toUnsignedString

public static String toUnsignedString(int value)

safeInt

public static int safeInt(Integer v)

Safe unbox an Integer to zero when null.

Parameters:

v - an Integer object

Returns:

the integer value, 0 if null

safeInt

public static Integer safeInt(Integer v,
 int defaultValue)

Safe unbox an Integer to defaultValue when null.

Parameters:

v - an Integer object

defaultValue - default value if null

Returns:

the integer value, defaultValue if null

min

public static Integer min(Collection<Integer> c)

Parameters:

c -

Returns:

max

public static Integer max(Collection<Integer> c)

Parameters:

c -

Returns:

formatIntegerCollection

public static String formatIntegerCollection(Collection<Integer> collection,
 Integer radix,
 String pfx,
 String sfx)

Format a collection of ints.

Parameters:

collection -

radix -

pfx -

sfx -

Returns:

formatHexIntegerCollection

public static String formatHexIntegerCollection(Collection<Integer> list)

Format a collection of ints.

Parameters:

collection - collection of ints

list -

Returns:

formatIntegerCollection

public static String formatIntegerCollection(Collection<Integer> collection,
 Integer radix,
 String pfx,
 String sfx,
 String separator)

Parameters:

collection -

radix - optional, default=10

pfx - optional, default=none

sfx - optional, default=none

separator -

Returns:

range

public static Iterable<Integer> range(int start,
 int end,
 int step)

Generate an iterable range of integers.

Parameters:

start -

end - exclusive

step - increment (can be negative, cannot be zero)

Returns:

range

public static Iterable<Integer> range(int start,
 int end)

Generate an incremental range of integers.

Parameters:

start -

end - exclusive

Returns:

range

public static Iterable<Integer> range(int cnt)

Generate an incremental range of integers from 0 to the provided count.

Parameters:

cnt -

Returns: