3 files changed, 36 insertions, 8 deletions
diff --git a/src/jcgp/gui/settings/SettingsPane.java b/src/jcgp/gui/settings/SettingsPane.java
index 802c1f1..2898dc3 100644
--- a/src/jcgp/gui/settings/SettingsPane.java
+++ b/src/jcgp/gui/settings/SettingsPane.java
@@ -255,7 +255,7 @@ public class SettingsPane extends AnchorPane {
 	}
 
 	private Button makeTestCaseButton() {
-		Button b = new Button("Show data1");
+		Button b = new Button("Show data");
 		b.setOnAction(new EventHandler<ActionEvent>() {
 			@Override
 			public void handle(ActionEvent event) {
@@ -331,7 +331,7 @@ public class SettingsPane extends AnchorPane {
 				fc.getExtensionFilters().add(new ExtensionFilter("All files", "*.*"));
 				File chrFile = fc.showOpenDialog(gui.getStage());
 				if (chrFile != null) {
-					gui.getExperiment().loadChromosome(chrFile, 0);
+					gui.getExperiment().loadChromosome(chrFile, gui.getChromosomeIndex());
 					gui.reDraw();
 				}
 				gui.flushConsole();
@@ -346,7 +346,7 @@ public class SettingsPane extends AnchorPane {
 				fc.getExtensionFilters().add(new ExtensionFilter("All files", "*.*"));
 				File chrFile = fc.showSaveDialog(gui.getStage());
 				if (chrFile != null) {
-					gui.getExperiment().saveChromosome(chrFile, 0);
+					gui.getExperiment().saveChromosome(chrFile, gui.getChromosomeIndex());
 				}
 				gui.flushConsole();
 			}
@@ -474,6 +474,9 @@ public class SettingsPane extends AnchorPane {
 			parameter.applyValue();
 		}
 		updateArity();
+		if (testCaseTable != null) {
+			testCaseTable.close();
+		}
 	}
 
 	/**
diff --git a/src/jcgp/gui/settings/parameters/GUIParameter.java b/src/jcgp/gui/settings/parameters/GUIParameter.java
index 3009340..f896fa3 100644
--- a/src/jcgp/gui/settings/parameters/GUIParameter.java
+++ b/src/jcgp/gui/settings/parameters/GUIParameter.java
@@ -23,7 +23,7 @@ import jcgp.gui.settings.SettingsPane;
  * This is the base class for all @code{GUIParameter}s. Using the factory method @code{GUIParameter.create()}
  * generates an appropriate instance of this class for the specified parameter.
  * <br><br>
- * @code{GUIParameter} is an @code{HBox} containing a @code{Text} for the parameter name 
+ * A @code{GUIParameter} is an @code{HBox} containing a @code{Text} for the parameter name 
  * and a @code{Control} for interaction.
  * It stores an instance of its associated @code{Parameter} object and also contains a @code{Tooltip} for 
  * displaying status information.
diff --git a/src/jcgp/gui/settings/testcase/TestCaseTable.java b/src/jcgp/gui/settings/testcase/TestCaseTable.java
index d4c1ff9..d4f789c 100644
--- a/src/jcgp/gui/settings/testcase/TestCaseTable.java
+++ b/src/jcgp/gui/settings/testcase/TestCaseTable.java
@@ -20,7 +20,10 @@ import jcgp.backend.resources.Resources;
 import jcgp.gui.GUI;
 
 /**
- * 
+ * This is a test case table. For problems that have test cases, 
+ * this table shows the test case inputs and outputs. Clicking on 
+ * a test case (one is shown per row) applies the values to all 
+ * chromosome inputs shows the calculated values throughout the chromosome.
  * 
  * @author Eduardo Pedroni
  *
@@ -29,17 +32,27 @@ public class TestCaseTable extends Stage {
 
 	private TableView<TestCase<Object>> table;
 
+	/**
+	 * Make a new instance of {@code TestCaseTable}.
+	 * 
+	 * @param testCaseProblem the {@code TestCaseProblem} whose data must be displayed.
+	 * @param gui a reference to the GUI.
+	 */
 	public TestCaseTable(final TestCaseProblem<Object> testCaseProblem, final GUI gui) {
 		super();
 		
 		Resources resources = gui.getExperiment().getResources();
 		
+		// create the actual table view
 		table = new TableView<TestCase<Object>>();
+		// get test cases from problem
 		ObservableList<TestCase<Object>> testCaseList = testCaseProblem.getTestCases();
 		
+		// prepare input and output columns
 		ArrayList<TableColumn<TestCase<Object>, String>> inputs = new ArrayList<TableColumn<TestCase<Object>, String>>(resources.inputs());
 		ArrayList<TableColumn<TestCase<Object>, String>> outputs = new ArrayList<TableColumn<TestCase<Object>, String>>(resources.outputs());
 
+		// create input columns
 		TableColumn<TestCase<Object>, String> tc;
 		for (int i = 0; i < resources.inputs(); i++) {
 			tc = new TableColumn<TestCase<Object>, String>("I: " + i);
@@ -48,13 +61,16 @@ public class TestCaseTable extends Stage {
 			tc.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<TestCase<Object>,String>, ObservableValue<String>>() {
 				@Override
 				public ObservableValue<String> call(CellDataFeatures<TestCase<Object>, String> param) {
+					// create a new string property and give it the test case value, no need for dynamic binding - this wont change often
 					return new SimpleStringProperty(param.getValue().getInput(index).toString());
 				}
 			});
 			tc.setSortable(false);
+			// set column width so all columns are distributed across the width of the stage
 			tc.prefWidthProperty().bind(table.widthProperty().divide(resources.inputs() + resources.outputs()));
 		}
 		
+		// create output columns
 		for (int o = 0; o < resources.outputs(); o++) {
 			tc = new TableColumn<TestCase<Object>, String>("O: " + o);
 			outputs.add(tc);
@@ -62,37 +78,46 @@ public class TestCaseTable extends Stage {
 			tc.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<TestCase<Object>,String>, ObservableValue<String>>() {
 				@Override
 				public ObservableValue<String> call(CellDataFeatures<TestCase<Object>, String> param) {
+					// create a new string property and give it the test case value, no need for dynamic binding - this wont change often
 					return new SimpleStringProperty(param.getValue().getOutput(index).toString());
 				}
 			});
 			tc.setSortable(false);
+			// set column width so all columns are distributed across the width of the stage
 			tc.prefWidthProperty().bind(table.widthProperty().divide(resources.inputs() + resources.outputs()));
 		}
 		
+		// add created columns
 		table.getColumns().addAll(inputs);
 		table.getColumns().addAll(outputs);
 		
+		// populate table with actual data
 		table.setItems(testCaseList);
 		
+		// apply test case values when a new test case is selected
 		table.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<TestCase<Object>>() {
 			@Override
-			public void changed(
-					ObservableValue<? extends TestCase<Object>> observable,	TestCase<Object> oldValue, TestCase<Object> newValue) {
+			public void changed(ObservableValue<? extends TestCase<Object>> observable,	TestCase<Object> oldValue, TestCase<Object> newValue) {
 				gui.evaluateTestCase(newValue);
 			}
 		});
 		
+		// when the stage is closed, clear the selection
+		// this doesn't work if the stage is closed by the program for some reason...
 		setOnCloseRequest(new EventHandler<WindowEvent>() {
 			@Override
 			public void handle(WindowEvent event) {
 				gui.hideGeneValues();
-				table.getSelectionModel().select(null);
+				table.getSelectionModel().clearSelection();
 			}
 		});
 		
 		setScene(new Scene(table));
 	}
 
+	/**
+	 * @return a reference to the actual table of test cases.
+	 */
 	public TableView<TestCase<Object>> getTable() {
 		return table;
 	}