Could any body help me in this case??

Bean b1 = new Bean();
Bean1 b2 = new Bean1();
How would I add these two beans to hashtable htDetails?? Already one beans has
been added b2.getapp1())???
(String)b1.getappr();
(String)b1.getcomm();
appDetails is a arraylist
key:String)b1.getMon()
for(int j=0;j<appDetails.size();j++){

b2 = (Bean) appDetails.get(j);

htDetails.put((String)b1.getMon()+(String)b1.getYear(),(String)b2.getapp1());


}