Programming steps:
1. Create an ArrayList:
ArrayList<HashMap> mylist = new ArrayList<>();
2. element in key-value pair(map list) :
HashMap hm = new HashMap();
3. element in key-value pair(map list) at each index.
mylist.add(hm);
mylist.add(1,hm2);
4. Clean the list if not empty:
if(mylist.isEmpty())
{
import java.util.HashMap;
import java.util.ArrayList;
public class INT
{
public static void main(String args[])
{
HashMap hm = new HashMap();
hm.put(101, "Aman");
HashMap hm1 = new HashMap();
//hm1.put(102,
"Chetanya");
HashMap hm2 = new HashMap();
hm2.put(103, "Ravish");
ArrayList<HashMap> mylist = new ArrayList<>();
mylist.add(hm);
mylist.add(1,hm2);
mylist.add(2,hm1);
//
mylist.add(123);
System.out.println("list is: "+mylist.get(2));
if(hm1.size()==0)
{
System.out.println("map empty");
}
if(mylist.get(2).isEmpty())
{
System.out.println("list index 2 is empty..");
}
System.out.println("list is "+mylist);
if(mylist.isEmpty())
{
System.out.println("list index 2 is empty..");
}
else
{
mylist.clear();
System.out.println("Now list is empty");
}
}
}