Home Tutorial Java Collections Arraylist Java arraylist to array

 
 

Java arraylist to array
Posted on: October 23, 2009 at 12:00 AM
This section demonstrates how to use Java ArrayList that can be converted into array

  • Java arrayList has method toArray()
  • It converts the given list into the array of Object.
  • It needs to be casted to the required data type.
  • Then it can be used properly.


Example of Java Arraylist to Array

import java.util.ArrayList;

public class List1 {
    public static void main(String[] args) {
     int ar[]={444,222,333,111};
     ArrayList list=new ArrayList();
     list.add(ar[0]);
     list.add(ar[1]);
     list.add(ar[2]);
     list.add(ar[3]);
     Object obj[]=list.toArray();
     for(Object  x:obj)
     {
         System.out.println((Integer)x-1);
     }
  }
}

Output

443
221
332
110

Related Tags for Java arraylist to array:


Ask Questions?

If you are facing any programming issue, such as compilation errors or not able to find the code you are looking for.

Ask your questions, our development team will try to give answers to your questions.