LocationPair.java

package Q17_11_Word_Distance;

public class LocationPair {
	public int location1;
	public int location2;
	public LocationPair(int first, int second) {
		setLocations(first, second);
	}
	
	public void setLocations(int first, int second) {
		this.location1 = first;
		this.location2 = second;
	}
	
	public void setLocations(LocationPair loc) {
		setLocations(loc.location1, loc.location2);
	}	
	
	public int distance() {
		return Math.abs(location1 - location2);
	}
	
	public boolean isValid() {
		return location1 >= 0 && location2 >= 0;
	}
	
	public void updateWithMin(LocationPair loc) {
		if (!isValid() || loc.distance() < distance()) {
			setLocations(loc);
		}
	}
	
	@Override
	public String toString() {
		return "(" + location1 + ", " + location2 + ")";
	}
}