Code Name "Tiger"

Oops, seems I'm completely ignorant.

I didn't know JAVA's new features adopted in J2SE5.0 -- auto-boxing--.

This new feature introduced in "Tiger", which is the code name for J2SE5.0, is quite amazing.

Truth be told, I was under the impression that wrapping primitive types to Wrapper types was the biggest fault in JAVA.

But the drawback was removed so long ago, it seems.

Haha, what a pity.

It's just my luck, when I was using JAVA at work, the version was "Kestrel."

Here, I'll post the code utilizing the feature "auto-boxing" along with the feature introduced in Tiger, the "for-each" iterator.

view plainprint?

1. public class Main {  
2.    public static void main(String args[]) {  
3.        ArrayList<Integer> x = new ArrayList<Integer>();  
4.        
5.        x.add(1);  
6.        x.add(100);  
7.        int n = 2;  
8.        x.add(n);  
9.        
10.        for (int i : x)  
11.            System.out.println(i);        
12.    }    
13. }  

public class Main {
   public static void main(String args[]) {
       ArrayList<Integer> x = new ArrayList<Integer>();
     
       x.add(1);
       x.add(100);
       int n = 2;
       x.add(n);
     
       for (int i : x)
           System.out.println(i);      
   }  
}

Now that I learned JAVA's new selling points, I'm getting willing to switch to JAVA more than ever~~.