IT의 신

Which of the following are true statements about the following code? (Choose all the apply) import java.util.ArrayList; import java.util.List; public class ListNull { public static void main(String[] args) { 4: List ages=new ArrayList(); 5: ages.add(Integer.parseInt("5")); 6: ages.add(Integer.valueOf("6")); 7: ages.add(7); 8: ages.add(null); 9: for(int age:ages) System.out.print(age); } } A) Exa..