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Multiple
Choice Quiz 1
Pre-test
Practice
There are
40 questions
(If you take this
quiz on Blackboard you will be timed and receive a test score.
This will be good
practice for the real online test)
Question 1.
A
syntax error is signalled by the
(a)
compiler
(b)
editor
(c)
linker
(d)
run-time
system
Question 2.
Which
type of code is editable?
(a)
executable
(b)
source
(c)
object
(d)
library
Question 3.
A
run-time error is ALWAYS caused by
(a)
incorrect
logic
(b)
incorrect
syntax
(c)
incorrect
linking
(d)
division
by zero
Question 4.
When
a program is running the value of a variable
(a)
cannot
be changed
(b)
cannot
be used
(c)
is
hidden
(d)
can
be changed
Question 5.
The
type of a function/procedure/module is determined by
(a)
its
arguments
(b)
the
value returned
(c)
its
name
(d)
the
address returned
Question 6.
Typically
a variable defined in a function/procedure/module has
(a)
scope
for the whole file
(b)
global
scope
(c)
local
scope
(d)
returns
its value between calls
Question 7.
A
program construct used for selection is
(a)
if...else
(b)
for
loop
(c)
while
loop
(d)
a
sequence
Question 8.
What
is the result of the the following expression
6+12*3-4/2
(a)
22
(b)
25
(c)
40
(d)
52
Question 9.
An
argument passed by reference passes
(a)
a
global variable
(b)
a
constant
(c)
a value
(d)
an
address
Question 10.
Test
results are proved by comparison of
(a)
logical
to syntax errors
(b)
expected
to actual input
(c)
logical
to run time errors
(d)
expected
to actual output
Question 11.
The
switch construct is used for
(a)
sequence
(b)
selection
(c)
iteration
(d)
boolean
operations
Question 12.
How
many times will the following loop execute?
for
(j=1; j<=10; j=j+1)
(a)
1
(b)
10
(c)
9
(d)
never
Question 13.
What
is the result after execution of the following code if a is 10, b is 5 and c is
10?
if
((a>b) && (a<=c))
a = a + 1
else
c = c + 1
(a)
a
= 10, c = 10
(b)
a
= 11, c = 10
(c)
a
= 10, c = 11
(d)
a
= 11, c = 11
Question 14.
Which
one of the following events is handled by an ActionListener?
(a)
mouse
dragged over a component
(b)
button
clicked on a component
(c)
key
pressed
(d)
window
closed
Question 15.
Which
one of the following uses the correct syntax to include an applet called
ButtonText in a HTML page?
(a)
<p><Applet="ButtonText.java"
width = 300 height = 250></p>
(b)
<p><Applet
code="ButtonText.java" width = 300 height = 250></p>
(c)
<p><Applet
code="ButtonText.class" width = 300 height = 250></p>
(d)
<p><Applet="ButtonText.class"
width = 300 height = 250></p>
Question 16.
Which
one of the following is FALSE?
(a)
anything written after / in on a line will be ignored by the
Java compiler
(b)
anything written after // in on a line will be ignored by the Java
compiler
(c)
anything written between /** and */ will be ignored
by the Java compiler
(d)
anything written between /* and */ will be ignored
by the Java compiler
Question 17.
What
is the purpose of the following code fragment?
void
init()
{
...some
code in here
}
(a)
A
required method to start an applet for the first time
(b)
A
method all user-defined classes must have
(c)
A
place to declare variables
(d)
A required method in an application
Question 18.
Which
of the following is FALSE? Java packages
(a)
are
sets of source code files
(b)
are
sets of predefined classes
(c)
allow
us to access predefined
classes
using the import statement
(d)
are
sets of bytecode class files
Question 19.
The
extends keyword
(a)
creates
an instance of a class
(b)
specifies
a class is independent
(c)
specifies
a class is a superclass of another class
(d)
specifies
a class is a subclass of another class
Question 20.
A
variable declared in a class but outside any method is called a
(a)
local
variable
(b)
instance
variable
(c)
static
variable
(d)
constant
Question 21.
Which
of the following methods directly uses an RGB color
(a)
setColor(Color.red)
(b)
setColor(Color.red)
(c)
setForeground(255,0,0,)
(d)
Color
c
Question 22.
The
paint method is
(a)
used
for painting graphic shapes
(b)
used
by an application for painting components
(c)
used
by an applet for painting components
(d)
a
required application method
Question 23.
Examine
the following method.
public
int anyMethod (int k) {
k=
k+ 1;
return
k;
}
Which
of the following statements is FALSE?
(a)
anyMethod(b)
passes the value held by the variable b.
(b)
anyMethod(b)
passes the address of the variable b.
(c)
anyMethod
returns the value of the variable k
(d)
the
variable k
is
a local variable
Question 24.
Which
of the following is FALSE? Reserved words in Java
(a)
cannot
be used as names for variables
(b)
cannot
be used for method names
(c)
can
be used for naming constants
(d)
are
part of the Java programming language
Question 25.
Which
of the following statement is FALSE?
(a)
Classes
have behavior (methods) and attributes (data)
(b)
class
attributes in Java are implemented as variables
(c)
attributes
represent an object's state
(d)
attributes
are local variables declared inside methods
Question 26.
The
break statement is used
(a)
in
a switch statement to stop cases running together
(b)
to
halt program execution
(c)
to
exit a method
(d)
in
a switch statement to go to the default case
Question 27.
The
NOT boolean operator is represented by
(a)
&&
(b)
!
(c)
^
(d)
||
Question 28.
A
dialog box which is modal
(a)
allows
interaction with other windows of its parent application
(b)
does not allow
interaction with other windows of its parent application
(c)
is
hidden
(d)
is
never used in java
Question 29.
A
panel is
(a)
a
component
(b)
a
window with a title bar
(c)
is
used to create dialog boxes
(d)
a
container used to organise components
Question 30.
A
Choice is
(a)
another
name for a list box
(b)
another
name for a combo box
(c)
another
name for a radio button group
(d)
another
name for a check box group
Question 31.
A
layout manager is used
(a)
for
containing components
(b)
for
laying out applets in a web page
(c)
for
organising menu items
(d)
for
arranging components in a container in a particular way
Question 32.
The
layout manager that arranges components in rows is called
(a)
FlowLayout
(b)
BorderLayout
(c)
GridLayout
(d)
BoxLayout
Question 33.
The
default layout manager for an applet is
(a)
FlowLayout
(b)
BorderLayout
(c)
GridLayout
(d)
BoxLayout
Question 34.
What
will be the result of the following expression?
String
s1 = new String ("Hello");
s1.equals("hello");
(a)
true
(b)
false
(c)
compiler
error
(d)
run
time error
Question 35.
Which
of the following Graphics methods is used for drawing the outline of a circle?
(a)
fillOval
(b)
drawCircle
(c)
fillCircle
(d)
drawOval
Question 36.
Which
of the following Graphics methods draws a horizontal line?
(a)
drawLine(100,0,100,0)
(b)
drawLine(0,100,0,100)
(c)
drawLine(0,0,100,100)
(d)
drawLine(0,0,100,0)
Question 37.
Which
of the following correctly creates a new instance of a swing button?
(a)
JButton
aNewButton = JButton("click me");
(b)
JButton
= new JButton("click me");
(c)
JButton
aNewButton = new JButton("click me");
(d)
JButton
aNewButton = new JButton;
Question 38.
Examine
the following code
public
class MyClass {
char ch
public void aMethod(int b) {
b = b + 1;
}
}
Which
of the following statement is FALSE?
(a)
ch
is an instance variable
(b)
b
is a local variable
(c)
b
is an instance variable
(d)
the
scope of b is within the method called aMethod
Question
39.
Which
one of the following would be a suitable type for a variable that stores
a person’s bank account amount?
(a)
boolean
(b)
int
(c)
float
(d)
String
Question
40.
What
will the following statement sequence output?
int
a = 10;
int
b = -10;
if
(a==b)
System.out.println("Equal");
else
System.out.println("Not
Equal");
(a)
Not Equal
(b)
Equal
(c)
The
program doesn't compile because = = cant be used here
(d)
Equal
Not equal
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