CSI1102
Quiz 3
Q1. [2 marks] Determine the validity of the following statements.
(T/F) 1.
The following declaration is correct: char[][] demo =
new char[3][4];
(T/F) 2. The following statement will not generate
an error:
for(int i=0;
i<= b.length; i++) b[i]=1;
(T/F) 3. A method that is declared final can not be overridden in a subclass.
(T/F) 4. An interface can not be inherited.
Q2. [3 marks] What does the following program print?
public class Messages
{ public static void main (String[] args)
{ Thought t = new
Thought();
Advice a
= new Advice();
t.message();
a.message();
}
}
public class Thought
{ protected int
x = 5;
public void message()
{ System.out.println ("Hello!!! x
is " + x); }
}
public class Advice extends
Thought
{ public void message()
{
System.out.println ("Warning!!! x is " +
x++);
super.message();
}
}
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