(a) Declare a local String variable id and initialize it with your 8-digit student ID in string form. What is the output of the following program segment?
String str = id + " "; // two spaces System.out.println(str.indexOf("5") + " + " + str.substring(0,2) + "\n"
+ str.trim().substring(5)+ "#");
[2 marks]
(b) The class List below is in java.util. What is the output of the following program segment?
List<String> aList = new Vector<>(); aList.add("one");
aList.add("two");
aList.add("three");
aList.add(2, "one"); aList.remove("one");
System.out.println(aList + "\n" + aList.size());