Question 1

If str1 and str2 are both String objects, which of the following expressions will correctly determine whether or not they are equal?

Accepted Answer

A)  str1 = str2 
B)  str1 && str2 
C)  str1.equals(str2) 
D)  str1 += str2 
A)  str1 = str2 
B)  str1 && str2 
C)  str1.equals(str2) 
D)  str1 += str2 C

Question 2

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  True

Question 3

What will be displayed after the following statements are executed? 
int y = 10;
If (y == 10)
{
Int x = 30;
X += y;
System.out.println(x);
}

Accepted Answer

A)  40 
B)  30 
C)  20 
D)  The code contains an error and will not compile. 
A)  40 
B)  30 
C)  20 
D)  The code contains an error and will not compile. A

Question 4

What will be the value of bonus after the following statements are 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)  750 
B)  1250 
C)  500 
D)  1000 
A)  750 
B)  1250 
C)  500 
D)  1000

Question 5

The boolean expression in an if statement must evaluate to

Accepted Answer

A)  degrees or radians 
B)  true or false 
C)  positive or negative 
D)  left or right 
A)  degrees or radians 
B)  true or false 
C)  positive or negative 
D)  left or right

Question 6

Enclosing a group of statements inside a set of braces creates

Accepted Answer

A)  an expression 
B)  a block of statements 
C)  a relational operator 
D)  a conditional statement 
A)  an expression 
B)  a block of statements 
C)  a relational operator 
D)  a conditional statement

Question 7

An important style rule that should be used when writing if statements is to write the conditionally executed statement on the line after the if statement.

Accepted Answer

A) True 
 B)False

Question 8

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

Question 9

Which of the following expressions could be used to perform a case-insensitive comparison of two String objects named str1 and str2?

Accepted Answer

A)  str1.equalsIgnoreCase(str2) 
B)  str1.equalsInsensitive(str2) 
C)  str1 != str2 
D)  str1 || str2 
A)  str1.equalsIgnoreCase(str2) 
B)  str1.equalsInsensitive(str2) 
C)  str1 != str2 
D)  str1 || str2

Question 10

__________ operators are used to determine whether a specific relationship exists between two values.

Accepted Answer

A)  Assignment 
B)  Arithmetic 
C)  Logical 
D)  Relational 
A)  Assignment 
B)  Arithmetic 
C)  Logical 
D)  Relational

Question 11

What will be the value of x after the following statements are executed? 
int x = 10;
Switch (x)
{
Case 10:
X += 15;
Case 12:
X -= 5;
Break;
Default:
X *= 3;
}

Accepted Answer

A)  30 
B)  20 
C)  25 
D)  5 
A)  30 
B)  20 
C)  25 
D)  5

Question 12

Unicode is an international encoding system that is extensive enough to represent all the characters of all the world's alphabets.

Accepted Answer

A) True 
 B)False

Question 13

A block of code is enclosed in a set of

Accepted Answer

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

Question 14

What will be the value of discountRate after the following statements are executed? 
double discountRate = 0.0;
Int purchase = 100;
If (purchase > 1000)
DiscountRate = 0.05;
Else if (purchase > 750)
DiscountRate = 0.03;
Else if (purchase > 500)
DiscountRate = 0.01;

Accepted Answer

A)  0.0 
B)  0.05 
C)  0.03 
D)  0.01 
A)  0.0 
B)  0.05 
C)  0.03 
D)  0.01

Question 15

All it takes for an OR expression to be true is for one of the subexpressions to be true.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following strings could be passed to the DecimalFormat constructor to display 12.78 as 12.8%?

Accepted Answer

A)  "##0.0%" 
B)  "###.##%" 
C)  "000.0%" 
D)  "#0.00%" 
A)  "##0.0%" 
B)  "###.##%" 
C)  "000.0%" 
D)  "#0.00%"

Question 17

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

Accepted Answer

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

Question 18

What will 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 = 0.05;
Else
DiscountRate = 0.04;
Else if (purchase > 750)
If (cust == 'Y')
DiscountRate = 0.04;
Else
DiscountRate = 0.03;
Else
DiscountRate = 0.0;

Accepted Answer

A)  0.0 
B)  0.04 
C)  0.05 
D)  0.03 
A)  0.0 
B)  0.04 
C)  0.05 
D)  0.03

Question 19

When two strings are compared using the String class's compareTo method, the comparison is not case sensitive.

Accepted Answer

A) True 
 B)False

Question 20

When a character is stored in memory, it is actually the __________ that is stored.

Accepted Answer

A)  Unicode number 
B)  ASCII code 
C)  floating-point value 
D)  letter, symbol, or number 
A)  Unicode number 
B)  ASCII code 
C)  floating-point value 
D)  letter, symbol, or number

If str1 and str2 are both String objects, which of the following expressions will correctly determine whether or not they are equal?

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 will be displayed after the following statements are executed? int y = 10; If (y == 10) { Int x = 30; X += y; System.out.println(x); }

What will be the value of bonus after the following statements are 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;

The boolean expression in an if statement must evaluate to

Enclosing a group of statements inside a set of braces creates

An important style rule that should be used when writing if statements is to write the conditionally executed statement on the line after the if statement.

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; }

Which of the following expressions could be used to perform a case-insensitive comparison of two String objects named str1 and str2?

__________ operators are used to determine whether a specific relationship exists between two values.

What will be the value of x after the following statements are executed? int x = 10; Switch (x) { Case 10: X += 15; Case 12: X -= 5; Break; Default: X *= 3; }

Unicode is an international encoding system that is extensive enough to represent all the characters of all the world's alphabets.

A block of code is enclosed in a set of

What will be the value of discountRate after the following statements are executed? double discountRate = 0.0; Int purchase = 100; If (purchase > 1000) DiscountRate = 0.05; Else if (purchase > 750) DiscountRate = 0.03; Else if (purchase > 500) DiscountRate = 0.01;

All it takes for an OR expression to be true is for one of the subexpressions to be true.

Which of the following strings could be passed to the DecimalFormat constructor to display 12.78 as 12.8%?

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

When two strings are compared using the String class's compareTo method, the comparison is not case sensitive.

When a character is stored in memory, it is actually the __________ that is stored.

Introduction to Computers and Java

Java Fundamentals

A First Look at Classes and Objects

Loops and Files

A Second Look at Classes and Objects

Arrays and the Arraylist Class

Text Processing and Wrapper Classes

Inheritance

Exceptions and Advanced File Io

Java-Fx: Gui Programming and Basic Controls

Java-Fx: Advanced Controls

Java-Fx: Graphics, Effects, and Media

Recursion

Databases

Filters

Exam 4: Decision Structures

If str1 and str2 are both String objects, which of the following expressions will correctly determine whether or not they are equal?

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 will be displayed after the following statements are executed? int y = 10; If (y == 10) { Int x = 30; X += y; System.out.println(x); }

What will be the value of bonus after the following statements are 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;

The boolean expression in an if statement must evaluate to

Enclosing a group of statements inside a set of braces creates

An important style rule that should be used when writing if statements is to write the conditionally executed statement on the line after the if statement.

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; }

Which of the following expressions could be used to perform a case-insensitive comparison of two String objects named str1 and str2?

__________ operators are used to determine whether a specific relationship exists between two values.

What will be the value of x after the following statements are executed? int x = 10; Switch (x) { Case 10: X += 15; Case 12: X -= 5; Break; Default: X *= 3; }

Unicode is an international encoding system that is extensive enough to represent all the characters of all the world's alphabets.

A block of code is enclosed in a set of

What will be the value of discountRate after the following statements are executed? double discountRate = 0.0; Int purchase = 100; If (purchase > 1000) DiscountRate = 0.05; Else if (purchase > 750) DiscountRate = 0.03; Else if (purchase > 500) DiscountRate = 0.01;

All it takes for an OR expression to be true is for one of the subexpressions to be true.

Which of the following strings could be passed to the DecimalFormat constructor to display 12.78 as 12.8%?

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

When two strings are compared using the String class's compareTo method, the comparison is not case sensitive.

When a character is stored in memory, it is actually the __________ that is stored.

Introduction to Computers and Java

Java Fundamentals

A First Look at Classes and Objects

Loops and Files

A Second Look at Classes and Objects

Arrays and the Arraylist Class

Text Processing and Wrapper Classes

Inheritance

Exceptions and Advanced File Io

Java-Fx: Gui Programming and Basic Controls

Java-Fx: Advanced Controls

Java-Fx: Graphics, Effects, and Media

Recursion

Databases

Filters