diff --git a/src/java/terminal.java b/src/java/terminal.java
index 97bece0..e4f96a3 100644
--- a/src/java/terminal.java
+++ b/src/java/terminal.java
@@ -18,7 +18,7 @@
  * programa;  se  não, escreva para a Free Software Foundation, Inc., 59 Temple
  * Place, Suite 330, Boston, MA, 02111-1307, USA
  *
- * Este programa está nomeado como lib3270.java e possui - linhas de código.
+ * Este programa está nomeado como terminal.java e possui - linhas de código.
  *
  * Contatos:
  *
@@ -46,6 +46,9 @@ public class terminal
 	 * ready for reading.
 	 *
 	 * @param seconds Maximum time (in seconds) to wait for.
+	 *
+	 * @return 0 for success, error code if not.
+	 *
 	 */
 	public native int wait_for_ready(int seconds);
 
@@ -98,23 +101,115 @@ public class terminal
 	 */
 	public native String	get_string_at(int row, int col, int sz);
 
+	/**
+	 * Set terminal contents at position.
+	 *
+	 * @param row	Row for starting of change.
+	 * @param col	Column for starting of change.
+	 * @param str	Text to set.
+	 *
+	 * @return 0 if ok, error code if not.
+	 *
+	 */
 	public native int		set_string_at(int row, int col, String str);
+
+	/**
+	 * Compare terminal contents.
+	 *
+	 * @param row	Row for text to compare.
+	 * @param col	Column for text to compare.
+	 * @param text	String to compare.
+	 *
+	 * @return result of strcmp() from text and terminal contents.
+	 *
+	 */
 	public native int		cmp_string_at(int row, int col, String text);
+
+
 	public native int		input_string(String str);
 
 	// Cursor management
+
+	/**
+	 * Move cursor to selected position.
+	 *
+	 * @param row	Row of the new cursor position.
+	 * @param col	Column of the new cursor position.
+	 *
+	 * @return Address of current cursor position.
+	 *
+	 */
 	public native int		set_cursor_position(int row, int col);
+
+	/**
+	 * Set cursor offset in the terminal buffer.
+	 *
+	 * @param addr	New cursor offset.
+	 *
+	 * @return Original cursor offset.
+	 *
+	 */
 	public native int		set_cursor_addr(int addr);
+
+	/**
+	 * Get cursor offset
+	 *
+	 * @return Current cursor offset.
+	 *
+	 */
 	public native int		get_cursor_addr();
 
 	// Keyboard actions
+
+	/**
+	 * Send an "ENTER" action.
+	 *
+	 * @return reserved.
+	 *
+	 */
 	public native int		enter();
+
+	/**
+	 * Send a pfkey to host.
+	 *
+	 * @param key PFkey number.
+	 *
+	 * @return reserved.
+	 *
+	 */
 	public native int		pfkey(int key);
+
+	/**
+	 * Send a pakey to host.
+	 *
+	 * @param key PFkey number.
+	 *
+	 * @return reserved.
+	 *
+	 */
 	public native int		pakey(int key);
 
 	// Actions
+
+	/**
+	 * quit remote pw3270 window.
+	 * <p>
+	 * Only valid if connected to a remote window
+	 *
+	 * @return reserved.
+	 *
+	 */
 	public native int		quit();
+
+	/**
+	 * Erase from cursor position until the end of the field.
+	 *
+	 * @return reserved.
+	 *
+	 */
 	public native int		erase_eof();
+
+
 	public native int		print();
 
 	// Connect/Disconnect
@@ -133,12 +228,16 @@ public class terminal
 	 * @param host		Host URI.
 	 * @param seconds	How many seconds to wait for a connection.
 	 *
+	 * @return 0 if ok, error code if not.
+	 *
 	 */
 	public native int		connect(String host, int seconds);
 
 	/**
 	 * Disconnect from host.
 	 *
+	 * @return 0 if ok, error code if not.
+	 *
 	 */
 	public native int		disconnect();
 
--
libgit2 0.21.2