Simple Interval class

[Botre]

public class Interval {

	private final long firstEntry;
	private final long lastEntry;

	private final boolean includeFirstEntry;
	private final boolean includeLastEntry;
	
	public Interval(final boolean includeFirstEntry, final long firstEntry, final long lastEntry, final boolean includeLastEntry) {
		this.firstEntry = firstEntry;
		this.lastEntry = lastEntry;
		this.includeFirstEntry = includeFirstEntry;
		this.includeLastEntry = includeLastEntry;
	}
	
	public boolean contains(long n) {
		return (n == firstEntry && includeFirstEntry) || (n == lastEntry && includeLastEntry) || (n > firstEntry && n < lastEntry);
	}

}

Edited September 7, 2014 by Botrepreneur

[darkxor]

Can just make always not including firstEntry, lastEntry? And like if(includeFirstEntry) firstEntry--; if(includeLastEntry) lastEntry++;

[Botre]

Can just make always not including firstEntry, lastEntry? And like if(includeFirstEntry) firstEntry--; if(includeLastEntry) lastEntry++;

 

I see what you mean, I could but I prefer the boolean specification because it mimics the mathematical notation for intervals.

 

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=

 

 

 

Edited September 7, 2014 by Botrepreneur

[Joseph]

I see what you mean, I could but I prefer the boolean specification because it mimics the mathematical notation for intervals.

 

[ 1, 40 [

 

=

 

i see what you mean, it does look like it

i think you meant

 

[ 1,40 )

Edited September 7, 2014 by josedpay

[Botre]

i see what you mean, it does look like it

i think you meant

 

[ 1,40 )

 

Both notations are accepted by the ISO 80000-2