Add setters in HyperParemeters class

src/main/java/be/cylab/java/wowa/training/HyperParameters.java

@@ -27,11 +27,11 @@ public class HyperParameters {
             final OptimizationAlgorithm algorithm,
             final Activation activation_function,
             final double percent_test_train) {
-        this.neurons_number = neurons_number;
-        this.learning_rate = learning_rate;
-        this.algorithm = algorithm;
-        this.activation_function = activation_function;
-        this.percent_test_train = percent_test_train;
+        setNeuronsNumber(neurons_number);
+        setLearningRate(learning_rate);
+        setAlgorithm(algorithm);
+        setActivationFunction(activation_function);
+        setPercentTestTrain(percent_test_train);
     }
 
     /**
@@ -47,7 +47,7 @@ public class HyperParameters {
             final OptimizationAlgorithm algorithm,
             final Activation activation_function) {
         this(neurons_number, learning_rate, algorithm,
-                activation_function, 100);
+                activation_function, 99);
     }
 
     /**
@@ -89,4 +89,51 @@ public class HyperParameters {
     public final double getPercentTestTrain() {
         return percent_test_train;
     }
+
+    /**
+     * @param neurons_number
+     */
+    public void setNeuronsNumber(final int neurons_number) {
+        if (neurons_number < 5 || neurons_number > 80) {
+            throw new IllegalArgumentException(
+                    "Neuron number must be between 5 and 80");
+        }
+        this.neurons_number = neurons_number;
+    }
+
+    /**
+     * @param learning_rate
+     */
+    public void setLearningRate(final double learning_rate) {
+        if (learning_rate <= 0.0 || learning_rate >= 1.0) {
+            throw new IllegalArgumentException(
+                    "Learning rate must be between 0 and 1");
+        }
+        this.learning_rate = learning_rate;
+    }
+
+    /**
+     * @param algorithm
+     */
+    public void setAlgorithm(final OptimizationAlgorithm algorithm) {
+        this.algorithm = algorithm;
+    }
+
+    /**
+     * @param activation_function
+     */
+    public void setActivationFunction(final Activation activation_function) {
+        this.activation_function = activation_function;
+    }
+
+    /**
+     * @param percent_test_train
+     */
+    public void setPercentTestTrain(final double percent_test_train) {
+        if (percent_test_train <= 0 || percent_test_train >= 100) {
+            throw new IllegalArgumentException(
+                    "Percentage of train must be between 0 and 100");
+        }
+        this.percent_test_train = percent_test_train;
+    }
 }