Agregar elemento a ArrayList de ArrayList en Java
class Main {
public static void main(String[] args) {
ArrayList < ArrayList < Integer >> mainList = new ArrayList < ArrayList < Integer >> ();
ArrayList < Integer > subList = new ArrayList < Integer > ();
for (int i = 0; i < 10; i++) {
subList = new ArrayList < Integer > ();
for (int j = i + 1; j < 10; j++) {
subList.add(element[j])
}
mainList.add(subList);
}
}
}
saloni khanna chilupuri