SCJP : Enhanced for loop (for-each) Mock Exam Practice Questions

Questions no -1

What is the output for the below code ?

public class Test {
	
	public static void main(String... args) {
		ArrayList list = new ArrayList();
		list.add(1);
		list.add(2);
		list.add(3);
		
		for(int i:list)
			System.out.println(i);
		

	}
}

options
A)1 2 3
B)Compile error , can't add primitive type in ArrayList
C)Compile error on for(int i:list) , Incorrect Syntax
D)0 0 0

Correct answer is : A

Explanations : JDK 1.5, 1.6 allows add primitive type in ArrayList  and for(int i:list) syntax is also correct.
for(int i:list) is same as 
for(int i=0; i