Contents

import java.util.HashSet;
import java.util.Set;

class Triangle {

    private double side1;
    private double side2;
    private double side3;

    Triangle(double side1, double side2, double side3) throws TriangleException {
        this.side1 = side1;
        this.side2 = side2;
        this.side3 = side3;

        if (allSidesAreZero() || hasImpossibleSides() || violatesTriangleInequality()) {
            throw new TriangleException();
        }
    }

    TriangleKind getKind() {
        int uniqueSides = getNumberOfUniqueSides();

        if (uniqueSides == 1) {
            return TriangleKind.EQUILATERAL;
        }

        if (uniqueSides == 2) {
            return TriangleKind.ISOSCELES;
        }

        return TriangleKind.SCALENE;
    }

    private boolean allSidesAreZero() {
        return side1 == 0 && side2 == 0 && side3 == 0;
    }

    private boolean hasImpossibleSides() {
        return side1 < 0 || side2 < 0 || side3 < 0;
    }

    private boolean violatesTriangleInequality() {
        return side1 + side2 <= side3 || side1 + side3 <= side2 || side2 + side3 <= side1;
    }

    private int getNumberOfUniqueSides() {
        Set<Double> sides = new HashSet<>();

        sides.add(side1);
        sides.add(side2);
        sides.add(side3);

        return sides.size();
    }

}

Version data entries

85 entries across 85 versions & 1 rubygems

Version	Path
trackler-2.2.1.41	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.40	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.39	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.38	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.37	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.36	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.35	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.34	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.33	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.32	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.31	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.30	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.29	tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java
trackler-2.2.1.28	tracks/java/exercises/triangle/src/example/java/Triangle.java
trackler-2.2.1.27	tracks/java/exercises/triangle/src/example/java/Triangle.java
trackler-2.2.1.26	tracks/java/exercises/triangle/src/example/java/Triangle.java
trackler-2.2.1.25	tracks/java/exercises/triangle/src/example/java/Triangle.java
trackler-2.2.1.24	tracks/java/exercises/triangle/src/example/java/Triangle.java
trackler-2.2.1.23	tracks/java/exercises/triangle/src/example/java/Triangle.java
trackler-2.2.1.22	tracks/java/exercises/triangle/src/example/java/Triangle.java