Java arraylist int

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Java arraylist int
Posted on: October 23, 2009 at 12:00 AM

This section demonstrates the use of for loop for int data type.

arraylist can contain int data type elements also.
Only wrapper class object is allowed to be added.
But due to boxing unboxing feature primitive datatype gets autoboxed into Wrapper class object.
In this example int data type gets converted into Integer data type.

Example of Java Arraylist int

import java.util.ArrayList;
import java.util.List;

public class List_for_int {
    public static void main(String[] args) {
        List list=new ArrayList();
       int arr1[]={11,12,13,14,15};
        for (int i = 0; i < arr1.length; i++) {
        list.add(arr1[i]);
        }
        for (int i = 0; i < arr1.length; i++) {
        System.out.println((i+1)+" : "+list.get(i));
        }
    }
}
Output
1 : 11
2 : 12
3 : 13
4 : 14
5 : 15

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