diff --git a/src/MainWindow.java b/src/MainWindow.java
index 8a97378..dc24cc0 100644
--- a/src/MainWindow.java
+++ b/src/MainWindow.java
@@ -117,6 +117,9 @@
 				JOptionPane.PLAIN_MESSAGE);
 	}
 
+	/**
+	 * This class will listen for button actions.
+	 */
 	private class ButtonListener implements ActionListener {
 		@Override
 		public void actionPerformed(ActionEvent e) {
@@ -140,6 +143,9 @@
 		}
 	}
 
+	/**
+	 * Refresh the list on the screen.
+	 */
 	private void updateList() {
 		model = new DefaultListModel<String>();
 		for (String s : this.elementList.getAllElementsAsStrings()) {
@@ -148,6 +154,9 @@
 		lstElementsList.setModel(model);
 	}
 
+	/**
+	 * Add an element to the list.
+	 */
 	private void addElement() {
 		if (!txtInputField.getText().equals("")) {
 			if (txtInputField.getText().contains(",")) {
@@ -160,20 +169,32 @@
 		}
 	}
 
+	/**
+	 * Remove an element from the list.
+	 */
 	private void removeElement() {
 		elementList.removeAt(elementList.find(lstElementsList.getSelectedValue()));
 		updateList();
 	}
 
+	/**
+	 * Remove all elements from the list.
+	 */
 	private void clearAllElements() {
 		elementList.clear();
 		updateList();
 	}
 
+	/**
+	 * Find the first element that matches in the list.
+	 */
 	private void findElement() {
 		lstElementsList.setSelectedValue(txtInputField.getText(), true);;
 	}
 
+	/**
+	 * Append a list of items separated by commas to the current list.
+	 */
 	private void appendList() {
 		String[] elements = txtInputField.getText().split(",");
 		IList<String> elementList = new List<String>();