source code ArrayList to Array convertion

package collection;

import java.util.ArrayList;

public class ArrayList2Array {

   
    public static void main(String[] args) {
       
        ArrayList a=new ArrayList();
       
        a.add(new Integer(100));
        a.add("java");
        a.add(new Integer(200));
        a.add(new Integer(300));

    System.out.println(a);  // here ArryList toString method called

    // ArrayList   to Array  by using toArray method
      Object o[]=a.toArray();
       
        for(int i=0;i<a.size();i++ )
               System.out.println(o[i]);
    }

}


output:
[100, java, 200, 300]
100
java
200
300