Answers for "array list object"

3

arraylist of objects in java

public static void main(String args[]){
	   ArrayList<Dog> doglist= new ArrayList<Dog>();
	  doglist.add(new Dog(“Joe”,”Husky”,3, white));
	  doglist.add(new Student(“Flash”,”German Shepherd",1, brown));
	  doglist.add(new Student(“Jason”,”Pitbull”,5,brown));
}
}
Posted by: Guest on August-19-2021
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

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