Answers for "how to create an array list"

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
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
0

how to create an array list in java

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

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