Answers for "how to declare arraylist"

3

how to make an array of arraylists in java

ArrayList<Integer> [] myList = (ArrayList<Integer>[]) new ArrayList[4];
Posted by: Guest on October-12-2020
0

How to create an ArrayList

import java.util.*;  
class JavaExample{  
   public static void main(String args[]){  
      ArrayList<String> alist=new ArrayList<String>();  
      alist.add("Steve");
      alist.add("Tim");
      alist.add("Lucy");
      alist.add("Pat");
      alist.add("Angela");
      alist.add("Tom");
  
      //displaying elements
      System.out.println(alist);
  
      //Adding "Steve" at the fourth position
      alist.add(3, "Steve");
  
      //displaying elements
      System.out.println(alist);
   }  
}
Posted by: Guest on September-27-2021
1

java arraylist declaration

ArrayList<E> yourArray = new ArrayList<E>();

//'E' can be raplaced with any data type or object, or left as 
// E if used for general funcitonality
Posted by: Guest on November-23-2020

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