import java.util.*;

public class Arraylists{

public static void main(String []args){

//1D Arraylist

/* ArrayList<String> food=new ArrayList<String>();

food.add("Meat");

food.add("Sushi");

food.add("Ramen");

food.add("MOMO");

food.set(0,"Chowmein");

food.remove(3);

for(int i=0;i<food.size();i++){

System.out.println(food.get(i));

}

food.clear();*/

//2D ArrayList

ArrayList<ArrayList<String>> school=new ArrayList<ArrayList<String>>();

ArrayList<Integer> marks=new ArrayList<Integer>();

marks.add(32);

marks.add(43);

marks.add(99);

System.out.println(marks);

ArrayList<String> sub=new ArrayList<String>();

sub.add("Math");

sub.add("Science");

sub.add("Chemistry");

System.out.println(sub);

ArrayList<String> stu=new ArrayList<String>();

stu.add("Mark");

stu.add("Harry");

stu.add("Chandu");

System.out.println(stu);

school.add(sub);

school.add(stu);

System.out.println(school);

System.out.println(school.get(1).get(2));

}

}