Java programming

0 votes
asked Jan 3 by anonymous

(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());

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