J2SE1.7英文api地址: http://download.oracle.com/javase/7/docs/api/
J2SE1.6英文api地址: http://download.oracle.com/javase/6/docs/api/
J2SE1.5 英文api地址:http://download.oracle.com/javase/1.5.0/docs/api/J2SE1.4 英文api地址:http://download.oracle.com/javase/1.4.2/docs/api/
J2EE1.5英文api地址: http://download.oracle.com/javaee/5/api/
J2EE1.6英文api地址: http://download.oracle.com/javaee/6/api/
J2EE1.4英文api地址: http://download.oracle.com/javaee/1.4/api/