de.up.ling.irtg.util

Class NumbersCombine

java.lang.Object

de.up.ling.irtg.util.NumbersCombine

public class NumbersCombine
extends Object

This method can be used to combine integers / shorts into longs / integers in order to represent pairs of these elements

Version:

1.0

Author:

Christoph Teichmann created Jun 30, 2013 4:28:01 PM

Constructor Summary

Constructors

Constructor and Description
NumbersCombine()

Method Summary

Modifier and Type	Method and Description
static long	combine(int arg1, int arg2) combines the two given numbers into a long that is unique for the two numbers and their order
static int	combine(short arg1, short arg2) combines the two given numbers into an int that is unique for the two numbers and their order
static short	getFirst(int code) returns the unique short i that has some number j such that code = combine(i,j)
static int	getFirst(long code) returns the unique int i that has some number j such that code = combine(i,j)
static short	getSecond(int code) returns the unique short i that has some number j such that code = combine(j,i)
static int	getSecond(long code) returns the unique int i that has some number j such that code = combine(j,i)

Methods inherited from class java.lang.Object

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

Constructor Detail

NumbersCombine

public NumbersCombine()

Method Detail

combine

public static long combine(int arg1,
                           int arg2)

combines the two given numbers into a long that is unique for the two numbers and their order

Parameters:

arg1 -

arg2 -

Returns:

combine

public static int combine(short arg1,
                          short arg2)

combines the two given numbers into an int that is unique for the two numbers and their order

Parameters:

arg1 -

arg2 -

Returns:

getFirst

public static int getFirst(long code)

returns the unique int i that has some number j such that code = combine(i,j)

Parameters:

code -

Returns:

getSecond

public static int getSecond(long code)

returns the unique int i that has some number j such that code = combine(j,i)

Parameters:

code -

Returns:

getFirst

public static short getFirst(int code)

returns the unique short i that has some number j such that code = combine(i,j)

Parameters:

code -

Returns:

getSecond

public static short getSecond(int code)

returns the unique short i that has some number j such that code = combine(j,i)

Parameters:

code -

Returns: