Question 1

Which of the following correctly tests the char variable chr to determine whether it is not equal to the character B?

Accepted Answer

A) if (chr > 'B') B) if (chr < 'B') C) if (chr != 'B') D) if (chr != "B") A) if (chr > 'B') B) if (chr < 'B') C) if (chr != 'B') D) if (chr != "B") C

Question 2

What is the value of ans after the following code has been executed? int x = 40;
Int y = 40;
Int ans = 0;
If (x = y)
Ans = x + 10;

Accepted Answer

A)  50 
B)  80 
C)  30 
D)  No value,this is a syntax error. 
A)  50 
B)  80 
C)  30 
D)  No value,this is a syntax error. D

Question 3

This is a boolean variable that signals when some condition exists in the program

Accepted Answer

A)  Sentinel 
B)  Block 
C)  Flag 
D)  Case 
A)  Sentinel 
B)  Block 
C)  Flag 
D)  Case C

Question 4

What will be the value of x after the following code is executed? int x = 75;
Int y = 60;
If (x > y)
X = x - y;

Accepted Answer

A)  75 
B)  15 
C)  60 
D)  135 
A)  75 
B)  15 
C)  60 
D)  135

Question 5

The if/else statement will execute one group of statements if its boolean expression is true or another group if its boolean expression is false.

Accepted Answer

A) True 
 B)False

Question 6

What would be the value of discountRate after the following statements are executed? double discountRate = 0.0;
Int purchase = 100;
If (purchase > 1000)
DiscountRate = .05;
Else if (purchase > 750)
DiscountRate = .03;
Else if (purchase > 500)
DiscountRate = .01;

Accepted Answer

A)  .05 
B)  .03 
C)  .01 
D)  0.0 
A)  .05 
B)  .03 
C)  .01 
D)  0.0

Question 7

What will be the value of pay after the following statements are executed? int hours = 45;
Double pay,payRate = 10.00;
Pay = hours < = 40 ? hours * payRate :
40 * payRate + (hours - 40)* payRate * 1.5;

Accepted Answer

A)  400.00 
B)  450.00 
C)  465.00 
D)  475.00 
A)  400.00 
B)  450.00 
C)  465.00 
D)  475.00

Question 8

What would be the value of bonus after the following statements are executed? int bonus,sales = 1250;
If (sales > 1000)
Bonus = 100;
If (sales > 750)
Bonus = 50;
If (sales > 500)
Bonus = 25;
Else
Bonus = 0;

Accepted Answer

A)  100 
B)  500 
C)  25 
D)  0 
A)  100 
B)  500 
C)  25 
D)  0

Question 9

If chr is a character variable,which of the following if statements is written correctly?

Accepted Answer

A)  if (chr = "a") 
B)  if (chr == "a") 
C)  if (chr = 'a') 
D)  if (chr == 'a') 
A)  if (chr = "a") 
B)  if (chr == "a") 
C)  if (chr = 'a') 
D)  if (chr == 'a')

Question 10

What will be the values of ans,x,and y after the following statements are executed? int ans = 35,x = 50,y =50;
If ( x >= y)
{
Ans = x + 10;
X -=y;
}
Else
{
Ans = y + 10;
Y += x;
}

Accepted Answer

A)  ans = 60,x = 50,y =100 
B)  ans = 60,x =0,y =50 
C)  ans = 45,x = 50,y = 0 
D)  ans = 45,x = 50,y = 50 
A)  ans = 60,x = 50,y =100 
B)  ans = 60,x =0,y =50 
C)  ans = 45,x = 50,y = 0 
D)  ans = 45,x = 50,y = 50

Question 11

What will be the values of ans,x,and y after the following statements are executed? int ans = 0,x = 15,y =25;
If ( x >= y)
{
Ans = x + 10;
X -=y;
}
Else
{
Ans = y + 10;
Y += x;
}

Accepted Answer

A)  ans = 0,x = 15,y = 25 
B)  ans = 25,x = -10,y = 25 
C)  ans = 35,x = 15,y = 40 
D)  ans = 25,x = 15,y = 40 
A)  ans = 0,x = 15,y = 25 
B)  ans = 25,x = -10,y = 25 
C)  ans = 35,x = 15,y = 40 
D)  ans = 25,x = 15,y = 40

Question 12

When testing for character values,the switch statement does not test for the case of the character.

Accepted Answer

A) True 
 B)False

Question 13

What will be the value of bonus after the following code is executed? int bonus,sales = 10000;
If (sales < 5000)
Bonus = 200;
Else if (sales < 7500)
Bonus = 500;
Else if (sales < 10000)
Bonus = 750;
Else if (sales < 20000)
Bonus = 1000;
Else
Bonus = 1250;

Accepted Answer

A)  200 
B)  500 
C)  750 
D)  1000 
E)  1250 
A)  200 
B)  500 
C)  750 
D)  1000 
E)  1250

Question 14

What will be printed when the following code is executed? double x = 45678.259;
DecimalFormat formatter =
New DecimalFormat("#,##0.0");
System.out.println(formatter.format(x));

Accepted Answer

A)  45678.259 
B)  45,678.259 
C)  45,678.26 
D)  45,678.3 
A)  45678.259 
B)  45,678.259 
C)  45,678.26 
D)  45,678.3

Question 15

What will be the value of ans after the following code has been executed? int ans = 10;
Int x = 65;
Int y = 55;
If (x >= y)
Ans = x + y;

Accepted Answer

A)  10 
B)  120 
C)  100 
D)  No value,there is a syntax error 
A)  10 
B)  120 
C)  100 
D)  No value,there is a syntax error

Question 16

A block of code is enclosed in a set of

Accepted Answer

A)  braces { } 
B)  parentheses ( ) 
C)  double quotes " " 
D)  brackets [ ] 
A)  braces { } 
B)  parentheses ( ) 
C)  double quotes " " 
D)  brackets [ ]

Question 17

What will be printed when the following code is executed? double x = 45678.259;
DecimalFormat formatter =
New DecimalFormat("#,###,##0.00");
System.out.println(formatter.format(x));

Accepted Answer

A)  45678.259 
B)  0,045,678.26 
C)  45,678.26 
D)  45,678.3 
A)  45678.259 
B)  0,045,678.26 
C)  45,678.26 
D)  45,678.3

Question 18

What will be the value of charges after the following code is executed? double charges,rate = 7.00;
Int time = 180;
Charges = time < = 119 ? rate * 2 :
Time / 60.0 * rate;

Accepted Answer

A)  7.00 
B)  14.00 
C)  21.00 
D)  28.00 
A)  7.00 
B)  14.00 
C)  21.00 
D)  28.00

Question 19

Which of the following expressions will determine whether x is less than or equal to y?

Accepted Answer

A)  x > y 
B)  x == y 
A)  x > y 
B)  x == y

Question 20

What would be the value of discountRate after the following statements are executed? double discountRate = 0.0;
Int purchase = 1250;
Char cust = 'N';
If (purchase > 1000)
If (cust == 'Y')
DiscountRate = .05;
Else
DiscountRate = .04;
Else if (purchase > 750)
If (cust == 'Y')
DiscountRate = .04;
Else
DiscountRate = .03;
Else
DiscountRate = 0;

Accepted Answer

A)  .05 
B)  .04 
C)  .03 
D)  0 
A)  .05 
B)  .04 
C)  .03 
D)  0

Exam 3: Decision Structures

Which of the following correctly tests the char variable chr to determine whether it is not equal to the character B?

What is the value of ans after the following code has been executed? int x = 40; Int y = 40; Int ans = 0; If (x = y) Ans = x + 10;

This is a boolean variable that signals when some condition exists in the program

What will be the value of x after the following code is executed? int x = 75; Int y = 60; If (x > y) X = x - y;

The if/else statement will execute one group of statements if its boolean expression is true or another group if its boolean expression is false.

What would be the value of discountRate after the following statements are executed? double discountRate = 0.0; Int purchase = 100; If (purchase > 1000) DiscountRate = .05; Else if (purchase > 750) DiscountRate = .03; Else if (purchase > 500) DiscountRate = .01;

What will be the value of pay after the following statements are executed? int hours = 45; Double pay,payRate = 10.00; Pay = hours < = 40 ? hours * payRate : 40 * payRate + (hours - 40)* payRate * 1.5;

What would be the value of bonus after the following statements are executed? int bonus,sales = 1250; If (sales > 1000) Bonus = 100; If (sales > 750) Bonus = 50; If (sales > 500) Bonus = 25; Else Bonus = 0;

If chr is a character variable,which of the following if statements is written correctly?

What will be the values of ans,x,and y after the following statements are executed? int ans = 35,x = 50,y =50; If ( x >= y) { Ans = x + 10; X -=y; } Else { Ans = y + 10; Y += x; }

What will be the values of ans,x,and y after the following statements are executed? int ans = 0,x = 15,y =25; If ( x >= y) { Ans = x + 10; X -=y; } Else { Ans = y + 10; Y += x; }

When testing for character values,the switch statement does not test for the case of the character.

What will be the value of bonus after the following code is executed? int bonus,sales = 10000; If (sales < 5000) Bonus = 200; Else if (sales < 7500) Bonus = 500; Else if (sales < 10000) Bonus = 750; Else if (sales < 20000) Bonus = 1000; Else Bonus = 1250;

What will be printed when the following code is executed? double x = 45678.259; DecimalFormat formatter = New DecimalFormat("#,##0.0"); System.out.println(formatter.format(x));

What will be the value of ans after the following code has been executed? int ans = 10; Int x = 65; Int y = 55; If (x >= y) Ans = x + y;

A block of code is enclosed in a set of

What will be printed when the following code is executed? double x = 45678.259; DecimalFormat formatter = New DecimalFormat("#,###,##0.00"); System.out.println(formatter.format(x));

What will be the value of charges after the following code is executed? double charges,rate = 7.00; Int time = 180; Charges = time < = 119 ? rate * 2 : Time / 60.0 * rate;

Which of the following expressions will determine whether x is less than or equal to y?

Introduction to Computers and Java

Java Fundamentals

Loops and Files

Methods

A First Look at Classes

A First Look at Gui Applications

Arrays and the Arraylist Class

A Second Look at Classes and Objects

Text Processing and More About Wrapper Classes

Inheritance

Exceptions and Advanced File Io

Advanced Gui Applications

Applets and More

Recursion

Sorting, Searching, and Algorithm Analysis

Generics

Collections

Array-Based Lists

Linked Lists

Stacks and Queues

Binary Trees, Avl Trees, and Priority Queues

Filters