Midterm.wi11 - Signature Name cs8w Student ID CSE 8A...

Signature _____________________ Name ________________________
cs8w ____ Student ID ____________________
CSE 8A
Midterm
Winter 2011
Page 1 ___________ (13 points)
Page 2 ___________ (17 points)
Page 3 ___________ (16 points)
Page 4 ___________ (20 points)
Page 5 ___________ (8 points)
Page 6 ___________ (19 points)
Total ___________ (93 points = 88 base points + 5 points EC [>5%])
(88 points = 100%)
This exam is to be taken by yourself with closed books, closed notes, no electronic devices.
You are allowed one side of an 8.5"x11" sheet of paper handwritten by you.

1
(Partial) Operator Precedence Table
Operators Associativity
! ++ -- (pre & post inc/dec) right to left
* / % left to right
+ - left to right
< <= > >= left to right
== != left to right
&& left to right
|| left to right
= right to left
Which of the following are valid Java identifiers? (Circle your answer(s).)
quarter_.25 Half-Time 25Cents double
quarter25 SuperBowl_XLV QUARTER_25 string_cheese
What does the statement
System.out.println( "The answer is: " + (3 + 2) + 1 );
print?
________________________________
What does the statement
System.out.println( 3 <= 2 );
print?
________________________________
What does
int x = 20 % 3; System.out.println( x );
print?
________________________________
What does the statement
System.out.println( "The answer is: " + 3 + 2 + 1 );
print?
________________________________
What gets printed?
public class M2
{
public static void main( String[] args )
{
System.out.println( -1 + 2 - 3 * 5 / 4 ); _________
System.out.println( 6 + 7 % 11 + 9 * 10 ); _________
}
}
What is printed by the following code?
int foo = 37;
int bar = 42;
boolean foobar = ( foo == bar );
System.out.println( foobar ); ____________
bar = 37;
System.out.println( foobar ); ____________
System.out.println( foo == bar ); ____________

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