Answers for "create arraylist in java"

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
9

arraylist in java

import java.util.ArrayList;
public class ArrayListExample
{
   public static void main(String[] args)
   {
      int num = 14;
      // declaring ArrayList with initial size num
      ArrayList<Integer> al = new ArrayList<Integer>(num);
      // append new element at the end of list
      for(int a = 1; a <= num; a++)
      {
         al.add(a);
      }
      System.out.println(al);
      // remove element at index 7
      al.remove(7);
      // print ArrayList after deletion
      System.out.println(al);
      // print elements one by one
      for(int a = 0; a < al.size(); a++)
      {
         System.out.print(al.get(a) + " ");
      }
   }
}
Posted by: Guest on October-23-2020
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
0

how to create an array list in java

List<Integer> list = new ArrayList<>();
Posted by: Guest on January-05-2020
0

how to declare array of arraylist in java

List<List<Individual>> group = new ArrayList<List<Individual>>(4);
Posted by: Guest on March-03-2021

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