edu.northwestern.at.utils.intcollections
Class IntRange

java.lang.Object
  edu.northwestern.at.utils.intcollections.IntRange

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class IntRange
extends java.lang.Object
implements java.io.Serializable, java.lang.Cloneable

A range of integers.

See Also:

Serialized Form

Field Summary

int	first The first integer in the range.
int	last The last integer in the range + 1.

Constructor Summary

IntRange(int first, int last)
Constructs a new integer range.

IntRange(java.lang.String str)
Constructs a new integer range from a string.

Method Summary

java.lang.Object	clone() Returns a copy of the range.
java.lang.String	toString() Returns a string representation of the range.

Methods inherited from class java.lang.Object

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

Field Detail

first

public int first

The first integer in the range.

last

public int last

The last integer in the range + 1.

Constructor Detail

IntRange

public IntRange(int first,
                int last)

Constructs a new integer range.

Parameters:

first - The first integer in the range.

last - The last integer in the range + 1.

Throws:

java.lang.IllegalArgumentException - If first >= last.

IntRange

public IntRange(java.lang.String str)

Constructs a new integer range from a string.

Parameters:

str - The string.

Throws:

java.lang.IllegalArgumentException - If syntax error in string.

Method Detail

toString

public java.lang.String toString()

Returns a string representation of the range.

If last = first+1: "first".

If last > first+1: "first-xxx" where "xxx"is last-1.

Overrides:

toString in class java.lang.Object

Returns:

The integer range as a string.

clone

public java.lang.Object clone()

Returns a copy of the range.

Overrides:

clone in class java.lang.Object

Returns:

The copy.