Question 1

Match between columns
                        Premises: Add characters at a specific location within a StringBuilder object

Accepted Answer

The Answer of buffer and immutable and concatenation and buffer. is...

Question 2

In a compareTo() method, programmers often do not need specific return values but want to determine if a value is positive or negative.

Accepted Answer

A) True 
 B)False

Question 3

A(n) ____ is a variable that holds a memory address.

Accepted Answer

A)  reference 
B)  Character 
C)  buffer 
D)  immutable 
A)  reference 
B)  Character 
C)  buffer 
D)  immutable

Question 4

Match between columns
                        Premises: Returns the lowercase equivalent of the argument

Accepted Answer

The Answer of indexOf() and toLowerCase(). and concatenation and insert() is...

Question 5

System.out.println("Your name is " + yourName); The above statement is an example of ____, which is used to join String s.

Accepted Answer

A)  concatenation 
B)  referencing 
C)  parsing 
D)  buffering 
A)  concatenation 
B)  referencing 
C)  parsing 
D)  buffering

Question 6

Match between columns
                        Premises: An unnamed object

Accepted Answer

The Answer of concatenation and capacity and String variable. and is...

Question 7

Which of the following correctly declares and initializes a String object?

Accepted Answer

A)  new String = Hello 
B)  String greeting == "Hello"; 
C)  String greeting = "Hello"; 
D)  String new = "Hello" 
A)  new String = Hello 
B)  String greeting == "Hello"; 
C)  String greeting = "Hello"; 
D)  String new = "Hello"

Question 8

The ____ method returns the length of a String .

Accepted Answer

A)  getSize() 
B)  getLength() 
C)  size() 
D)  length() 
A)  getSize() 
B)  getLength() 
C)  size() 
D)  length()

Question 9

A literal string is a(n) ____ object.

Accepted Answer

A)  lost 
B)  anonymous 
C)  class 
D)  named 
A)  lost 
B)  anonymous 
C)  class 
D)  named

Question 10

String aName = "Michael" 
Using the above statement, write the length() method that will return the length of the aName String . What value will the length() method return when executed?

Accepted Answer

int len = aName.leng

Question 11

How can you change the length of a String in a StringBuilder object?

Accepted Answer

You can change the length of a string in

Question 12

Match between columns
                        Premises: A named object of the String class

Accepted Answer

The Answer of anonymous object and concatenation and append(). and is...

Question 13

When working with String s, it is necessary to explicitly set a String to null .

Accepted Answer

A) True 
 B)False

Question 14

Match between columns
                        Premises: Add characters to the end of a StringBuilder object

Accepted Answer

The Answer of insert() and anonymous object and toLowerCase(). and is...

Question 15

The ____ method converts any object to a String .

Accepted Answer

A)  convertString() 
B)  toString() 
C)  replace() 
D)  substring() 
A)  convertString() 
B)  toString() 
C)  replace() 
D)  substring()

Question 16

Describe how a programmer would use the two types of Character class methods (those that begin with "is" and those that begin with "to") for testing the values of characters.

Accepted Answer

The methods that begin with "is", such a

Question 17

To alter just one character in a StringBuilder , you can use the ____ method, which allows you to change a character at a specified position within a StringBuilder object.

Accepted Answer

A)  charAt() 
B)  insert() 
C)  append() 
D)  setCharAt() 
A)  charAt() 
B)  insert() 
C)  append() 
D)  setCharAt()

Question 18

myCounty = "Clark Jackson Scioto" 
myCounty.charAt(6) 
Using the above code, what will be the value of the charAt() method once the code executes? Explain how the charAt() method operates.

Accepted Answer

The charAt() method requires an integer

Question 19

String firstString = "Oak Maple Pine" 
String secondString = "spruce Maple elm" 
firstCompare.regionMatches(4, secondString, 7, 5) 
Using the above code, what will be the Boolean value after execution of the regionMatches statement? Explain how the String s are compared using the regionMatches() method.

Accepted Answer

The regionMatches() method can be used t

Question 20

String greeting = "Welcome Home"; 
Using the above String , create the String method to convert the greeting String to all uppercase. Likewise, create the String method to convert the greeting String to all lowercase.

Accepted Answer

To convert to uppercase: 
gree

In a compareTo() method, programmers often do not need specific return values but want to determine if a value is positive or negative.

A(n) ____ is a variable that holds a memory address.

System.out.println("Your name is " + yourName); The above statement is an example of ____, which is used to join String s.

Which of the following correctly declares and initializes a String object?

The ____ method returns the length of a String .

A literal string is a(n) ____ object.

String aName = "Michael" Using the above statement, write the length() method that will return the length of the aName String . What value will the length() method return when executed?

How can you change the length of a String in a StringBuilder object?

When working with String s, it is necessary to explicitly set a String to null .

The ____ method converts any object to a String .

Describe how a programmer would use the two types of Character class methods (those that begin with "is" and those that begin with "to") for testing the values of characters.

To alter just one character in a StringBuilder , you can use the ____ method, which allows you to change a character at a specified position within a StringBuilder object.

myCounty = "Clark Jackson Scioto" myCounty.charAt(6) Using the above code, what will be the value of the charAt() method once the code executes? Explain how the charAt() method operates.

String greeting = "Welcome Home"; Using the above String , create the String method to convert the greeting String to all uppercase. Likewise, create the String method to convert the greeting String to all lowercase.

Creating Your First Java Classes

Using Data

Using Methods, Classes and Objects

More Object Concepts

Making Decisions

Looping

Arrays

Advanced Array Concepts

Introduction to Inheritance

Advanced Inheritance Concepts

Exception Handling

File Input and Output

Introduction to Swing Components

Using Javafx and Scene Builder

Filters

Exam 7: Characters, Strings and the Stringbuilder

In a compareTo() method, programmers often do not need specific return values but want to determine if a value is positive or negative.

A(n) ____ is a variable that holds a memory address.

System.out.println("Your name is " + yourName); The above statement is an example of ____, which is used to join String s.

Which of the following correctly declares and initializes a String object?

The ____ method returns the length of a String .

A literal string is a(n) ____ object.

String aName = "Michael" Using the above statement, write the length() method that will return the length of the aName String . What value will the length() method return when executed?

How can you change the length of a String in a StringBuilder object?

When working with String s, it is necessary to explicitly set a String to null .

The ____ method converts any object to a String .

Describe how a programmer would use the two types of Character class methods (those that begin with "is" and those that begin with "to") for testing the values of characters.

To alter just one character in a StringBuilder , you can use the ____ method, which allows you to change a character at a specified position within a StringBuilder object.

myCounty = "Clark Jackson Scioto" myCounty.charAt(6) Using the above code, what will be the value of the charAt() method once the code executes? Explain how the charAt() method operates.

String greeting = "Welcome Home"; Using the above String , create the String method to convert the greeting String to all uppercase. Likewise, create the String method to convert the greeting String to all lowercase.

Creating Your First Java Classes

Using Data

Using Methods, Classes and Objects

More Object Concepts

Making Decisions

Looping

Arrays

Advanced Array Concepts

Introduction to Inheritance

Advanced Inheritance Concepts

Exception Handling

File Input and Output

Introduction to Swing Components

Using Javafx and Scene Builder

Filters