tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java in trackler-2.2.1.41 vs tracks/java/exercises/triangle/.meta/src/reference/java/Triangle.java in trackler-2.2.1.42

@@ -4,32 +4,33 @@
 class Triangle {
 
     private double side1;
     private double side2;
     private double side3;
+    private int uniqueSides;
 
     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();
         }
+
+        this.uniqueSides = getNumberOfUniqueSides();
     }
 
-    TriangleKind getKind() {
-        int uniqueSides = getNumberOfUniqueSides();
+    boolean isEquilateral() {
+        return uniqueSides == 1;
+    }
 
-        if (uniqueSides == 1) {
-            return TriangleKind.EQUILATERAL;
-        }
+    boolean isIsosceles() {
+        return uniqueSides == 2;
+    }
 
-        if (uniqueSides == 2) {
-            return TriangleKind.ISOSCELES;
-        }
-
-        return TriangleKind.SCALENE;
+    boolean isScalene() {
+        return uniqueSides == 3;
     }
 
     private boolean allSidesAreZero() {
         return side1 == 0 && side2 == 0 && side3 == 0;
     }