Monday, February 16, 2015

ArrayList

ArrayList is a like a array in which you ca add, remove, update the list and its dynamic.Below example explains the arraylist creation, storing values and displaying them.


package Example1;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.Scanner;

public class Arraylist {

 public static void main(String[] args) {
		// TODO Auto-generated method stub
		ArrayList newarry=new ArrayList();
		newarry.add("abc");
		newarry.add("def");
		newarry.add("xyz");
		newarry.add("232");
		newarry.add("121");
		
//		Iterator ite=newarry.iterator();
//		while(ite.hasNext()){
//			System.out.println(ite.next());
//		}
		
//		for(int i=0;i< newarry.size();i++){
//			System.out.println(newarry.get(i));
//		}
		
//		for(String i:newarry){
//			System.out.println(i);
//		}

		//newarry.remove(2);
		//newarry.removeAll(newarry);
		for(String i:newarry){
			System.out.println(i);
		}
	}

}


output:
abc
def
xyz
232
121
iterator is used to display the arraylist or you can use a for loop or enhanced for loop to display the array list. >>>
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