1)i installed jboss+eclipse.Now at windows -prferences -myclipse -jboss-launch mode there is two option run and debug mode.what is the difference between these two?
Runtime mode does not compile the JSP pages with debugging information and turns off connections to the remote debugger, running in debug mode allows you to debug your JSP/Servlets/Beans/EJBs/etc while JBoss is running.
what are these three indicating.means append to library means which library?
append to classpath means which classpath
and what is difference between these append to classpath and prepend to classpath
Classpath = The runtime classpath exposed to JBoss when it is run. By default MyEclipse will load all the libraries in JBoss library directory, but if you have special JARs you need to add to the classpath (like a JDBC driver) that lives in another directory, you can add it here. As far as Prepending/Appending that can effect the load-order of the classes, so we offer both.
Library Path = The path that your classloader will scan when trying to load a native resource like a DLL for a JDBC driver.