package JavaSessions;

import java.util.ArrayList;

public class DynamicArray {

public static void main(String[] args) {

//ArrayList

ArrayList ar = new ArrayList();

ar.add(100);//0

ar.add(200);//1

ar.add("Hello");//2

ar.add('m');//3

ar.add(12.33);//4

ar.add(true);//5

System.out.println(ar.size());

ar.add(300);//6

ar.add(400);//7

System.out.println(ar.size());

ar.add(4, 22.33);

System.out.println(ar.get(4));

System.out.println(ar.get(1));

//System.out.println(ar.get(8));//IndexOutOfBoundsException

//to print all the values of arraylist: use for loop:

for(int i=0; i<ar.size(); i++){

System.out.println(ar.get(i));

}

ar.remove(6);

System.out.println("the value of 6th position:"+ ar.get(6));

ar.add("Naveen");//7

//Generics:

ArrayList<Integer> ar1 = new ArrayList<Integer>();

ar1.add(100);

ArrayList<String> ar2 = new ArrayList<String>();

ar2.add("Hello");

}

}