solved look this code create by myself
Autos aut=new Autos();
aut.setAuto("Auto1");
aut.setColor("Negro");
aut.setId_auto(12);
aut.setPeso(10000);
aut.setTama("Grande");
Field[] fields = aut.getClass().getDeclaredFields();
String campos="";
String valores="";
for (int i = 0; i < fields.length; i++) {
try{
String name = fields[i].getName();
String value = fields[i].get(aut).toString();
if(i!=0){
campos=campos+",";
valores=valores+",";
}
if(fields[i].get(aut) instanceof String){
valores=valores+"'"+value+"'";
}
else{
valores=valores+value;
}
campos=campos+name;
} catch (IllegalAccessException ex) {}
}
String sql="insert into dbo."+aut.getClass().getSimpleName().toLowerCase()+"("+campos+")values("+valores+");";
System.out.println(sql);