I have an arraylist in Java ArrayList[Consultas.ControldeInformes, Consultas.SaldoMora, Consultas.ReporteMensual, Mantenimientos.Agregar, Mantenimientos.Editar, Mantenimientos.Actualizar]
I would like to convert the arraylist to place it as menus and submenus in HTML, how to iterate the array to be of this structure:
Menu: Consultas
Submenus: ControldeInformes,SaldoMora,ReporteMensual
Menu: Mantenimientos
Submenus: Agregar,Editar,Actualizar
How to separate or split the arraylist?
I write a code to create a map with your requirements:
class Main {
public static void main(String[] args) {
List<String> exampleList = new ArrayList<> (Arrays.asList(
"Consultas.ControldeInformes", "Consultas.SaldoMora",
"Consultas.ReporteMensual", "Mantenimientos.Agregar",
"Mantenimientos.Editar", "Mantenimientos.Actualizar"
));
System.out.print(mapInput(exampleList).toString());
}
private static Map<String,List<String>> mapInput(List<String> input) {
Map<String,List<String>> map = new HashMap<>();
input.stream()
.map(x->getMenu(x))
.distinct()
.forEach(x->map.put(x, new ArrayList<>()));
for (String item : input) {
List<String> subMenus = map.get(getMenu(item));
subMenus.add(getSubMenu(item));
map.put(getMenu(item), subMenus);
}
return map;
}
private static String getMenu(String item){
return item.split("\\.")[0];
}
private static String getSubMenu(String item){
return item.split("\\.")[1];
}
}
{Consultas=[ControldeInformes, SaldoMora, ReporteMensual], Mantenimientos=[Agregar, Editar, Actualizar]}