when we are using thows when exception coms thatperticular exceptions handle by JVM.

using throw you can throw the perticular exception.

like:

 try {
       //..
      
     }catch(xxException e) {
       //..
       throw new xxxException("xxx");
     }catch(Excepiton ee) {
       //..
     }finally {
       try {
        //..
       }catch(xxException eee) {
        //..
       }
     }

You use the Transient keyword to indicate to the Java virtual machine that the indicated variable is not part of the persistent state of the object.

when your serialization that object it can't persistent that value