exit midterm exam

NAME$\underset{¯}{}$

 
CSE 214: Mid Term Exam
 
Tu, Nov 4, 3:30—4:48
Open Notes, Open Books
The exam consists of $\underset{¯}{seven}$ problems
Answers not appearing in designated spaces WILL NOT be graded

Problem #1 (10 points)

Fill the missing numbers in the following table

Decimal	Binary	Octal	Hexadecimal
17
	10101
		11
			A3

Problem #2 (10 points)

Show the output of the following println instruction.

System.out.println(  
   "\u0047\u006F\u006F\u0064\u0020\114\165\143\153"  
);

ASCII octal codes:

0 1 2 3 4 5 6 7 4 sp ! " # $ % & ’ 5 ( ) * + , - . / 6 0 1 2 3 4 5 6 7 7 8 9 : ; < = > ? 10 @ A B C D E F G 11 H I J K L M N O

0 1 2 3 4 5 6 7 12 P Q R S T U V W 13 X Y Z [ \ ] ^ _ 14 ‘ a b c d e f g 15 h i j k l m n o 16 p q r s t u v w 17 x y z { | } ~

ASCII hexadecimal codes:

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

2

sp

!

"

#

$

%

&

’

(

)

*

+

,

-

.

/

3

0

1

2

3

4

5

6

7

8

9

:

;

<

=

>

?

4

@

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

5

P

Q

R

S

T

U

V

W

X

Y

Z

[

\

]

^

_

6

‘

a

b

c

d

e

f

g

h

i

j

k

l

m

n

o

7

p

q

r

s

t

u

v

w

x

y

z

{

|

}

~

Problem #3 (10 points)

Show the output of the following code fragment.

for(int c = 0; c < 127; c++) 
{ 
   switch( c ){ 
     case    53: System.out.println( ’5’ ); continue; 
     case    41: System.out.println( ’!’ ); continue; 
     case    65: System.out.println( ’A’ ); break; 
        default: continue; 
   } 
   break; 
}

Problem #4 (10 points)

the output of the following code fragment.

int [] x = new int[5]; 
x[0] = 0; 
x[1] = 1; 
x[2] = x[0] + x[1]; 
x[3] = x[0] + x[1] − x[2]; 
x[4] = x[0] + x[1] − x[2] + x[3]; 
for( int i = 0; i<5; i++ ) 
{ 
   System.out.print( x[i] + ” ”); 
} 
System.out.println();

Problem #5 (10 points)

Show the output of the following code fragment.

int [][] a = new int [3][2]; 
for(int i=0; i<3; i=i+1 ){ 
   for(int j=0; j<2; j=j+1 ){ 
      a[i][j] = i ∗ j; 
}  } 
for(int i=0; i<3; i=i+1 ){ 
   for(int j=0; j<2; j=j+1 ){ 
      System.out.print( a[i][j] ); 
   } 
   System.out.println (); 
}

Problem #6 (10 points)

Consider the following Exam class.

Field Summary
static int	one	holds the digit 1
int	two	holds the digit 2
Constructor Summary
Exam()
Method Summary
static int	getThree()	produces the digit 3
int	getFour()	produces the digit 4

The incomplete program

class Test{ 
   public static void main(String [] args){ 
             = new        ; 
      System.out.println(         one ); 
      System.out.println(         two ); 
      System.out.println(         getThree() ); 
      System.out.println(         getFour() ); 
   } 
}

produces the following output.

1  
2  
3  
4

Add the missing code fragments to the given program. (It is not allowed to remove code from the program.)

Problem #7 (10 points)

Consider the following program.

class Test{ 
   public static void main(String [] args){ 
      Hidden obj  = new Hidden(); 
      Hidden objMax  = new Hidden( Hidden.max ); 
      Hidden objMin  = new Hidden( Hidden.min ); 
      double min = objMin.getValue(); 
      double max = objMax.getValue(); 
      double diff = max−min; 
      obj.setValue( diff ); 
   } 
}

The program uses a class named Hidden. Show the details of the fields, constructors, and methods of the Hidden class that are used in the program.

Field Summary
Constructor Summary
Method Summary