batch execution

Statement st = null;
		try{
			conn.setAutoCommit(false);
			st = conn.createStatement();			
			for(int i=0;i<sqlBatch.length;i++){
				st.addBatch(sqlBatch[i]);
				//commit per 500 sql sentences
				if(i!=0&&i%500==0){
					st.executeBatch();
					st.clearBatch();
					conn.commit();					
					System.out.println("Update Success!"+i);
				}
			}
			st.executeBatch();
			st.clearBatch();
			conn.commit();
		}catch(SQLException se){
			System.out.println("SQLException"+se.getMessage());
		} catch (Exception e) {
			e.printStackTrace();
		}finally{
			try {
				st.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}