Softwarequalitaetssicherung/src/main/java/de/hsel/sqs/TriangleChecker.java

package de.hsel.sqs;

/**
 * @author Julian Hinxlage
 * @version 0.1
 * @since 0.1
 **/
public class TriangleChecker {

    public static TriangleType checkTriangle(int a, int b, int c) {
        if (a <= 0 || b <= 0 || c <= 0)
            return TriangleType.NO_TRIANGLE;

        if ((long)a + (long)b > (long)c && (long)a + (long)c > (long)b && (long)b + (long)c > (long)a) {
            if (a == b && a == c)
                return TriangleType.EQUILATERAL_TRIANGLE;

            if (a == b || a == c || b == c)
                return TriangleType.ISOSCELESS_TRIANGLE;

            return TriangleType.SCALENE_TRIANGLE;
        }


        return TriangleType.NO_TRIANGLE;
    }

}