Question 1

The term ________ commonly is used to refer to a string that is part of another string.

Accepted Answer

A)  nested string 
B)  literal 
C)  substring 
D)  delimiter

Question 2

The String class's valueOf method accepts a string representation as an argument and returns its equivalent integer value.

Accepted Answer

A) True 
 B)False

Question 3

The ________ method returns a copy of the calling String object, in which all leading and trailing whitespace characters have been deleted.

Accepted Answer

A)  remove 
B)  trim 
C)  compress 
D)  concat

Question 4

What will be the tokens in the following statement?
StringTokenizer st =
New StringTokenizer("9-14-2014", "-", true);

Accepted Answer

A)  9, 14, and 2014 
B)  9, 14, 2014, and - 
C)  - 
D)  None of the above

Question 5

What will be displayed after the following statements are executed?
StringBuilder strb =
New StringBuilder("We have lived in Chicago, Trenton, and Atlanta.");
Strb.replace(17, 24, "Tampa");
System.out.println(strb);

Accepted Answer

A)  We have lived in Tampa, Trenton, and Atlanta. 
B)  We have lived in Chicago, Trenton, and Tampa. 
C)  We have lived in Chicago, Tampaon, and Atlanta. 
D)  We have lived in Chicago, Tampa, and Atlanta.

Question 6

What will be displayed after the following code has been executed?
Boolean matches;
String str1 = "The cow jumped over the moon.";
String str2 = "moon";
Matches = str1.endsWith(str2);
System.out.println(matches);

Accepted Answer

A)  true 
B)  moon 
C)  false 
D)  The cow

Question 7

Any ________ argument passed to the Character class's toLowerCase method or toUpperCase method is returned as it is.

Accepted Answer

A)  nonletter 
B)  char 
C)  string 
D)  static

Question 8

For the following code, how many times would the while loop execute?
StringTokenizer st =
New StringTokenizer("Java programming is fun!");
While (st.hasMoreTokens())
System.out.println(st.nextToken());

Accepted Answer

A)  7 
B)  4 
C)  5 
D)  1

Question 9

What will be displayed after the following statements are executed?
StringBuilder strb = new StringBuilder(12);
Strb.append("The cow ");
Strb.append("jumped over the ");
Strb.append("moon.");
System.out.println(strb);

Accepted Answer

A)  The cow jumped over the moon. 
B)  The cow jumped over the
Moon. 
C)  The cow jump 
D)  12The cow jumped over the moon.

Question 10

You will cause an off-by-one error, when working with a character position within a string, if you think of the first position in a string as 1.

Accepted Answer

A) True 
 B)False

Question 11

What will be displayed after the following statements are executed?
String str = "red$green&blue#orange";
String[] tokens = str.split("[$&#]");
For (String s : tokens)
System.out.print(s + " ");

Accepted Answer

A)  red green blue orange 
B)  Red $ green & blue # orange 
C)  $ & # 
D)  red [$&#] green [$&#] blue [$&#] orange

Question 12

The Character wrapper class provides numerous methods for

Accepted Answer

A)  converting objects to primitive data types. 
B)  testing and converting character data. 
C)  testing and converting numeric literals. 
D)  performing operations with named constants.

Question 13

In the ________ file format, when the data in a spreadsheet is exported, each row is written to a line, and the values in the cells are separated by commas.
A) comma separated value
B) extensible markup language
C) excel binary
D) data interchange

Accepted Answer

The answer of In the ________ file format, when the...

Question 14

Which of the following import statements is required to use the StringTokenizer class?

Accepted Answer

A)  import java.util.Scanner 
B)  import java.text.DecimalFormat; 
C)  import java.util.StringTokenizer; 
D)  import javax.swing.JOptionPane;

Question 15

Which of the following statements will display the maximum value that a double can hold?

Accepted Answer

A)  System.out.println(Double.MAX_VALU
E) ; 
B)  System.out.println(Double.MAXIMUM_VALU
E) ; 
C)  System.out.println(Double.MAX_VAL); 
D)  System.out.println(<double>(MAX_VALU
E) );

Question 16

You cannot assign a value to a wrapper class object.

Accepted Answer

A) True 
 B)False

Question 17

A series of words or other items of data separated by spaces or other characters are known as

Accepted Answer

A)  strings. 
B)  tokens. 
C)  delimiters. 
D)  captions.

Question 18

The StringBuilder class's insert method allows you to insert into the calling object's string

Accepted Answer

A)  a char array. 
B)  a primitive type. 
C)  a String object. 
D)  All of the above

Question 19

Which of the following statements converts an int variable named number to a string and stores the value in the String object variable named str?

Accepted Answer

A)  String str = Integer.toString(number); 
B)  String str = number.Integer.toString(str); 
C)  String str = integer(number); 
D)  String str = integer.toString(number);

Question 20

The String class's ________ method accepts a value of any primitive data type as its argument and returns a string representation of the value.

Accepted Answer

A)  trim 
B)  getChar 
C)  toString 
D)  valueOf

Exam 8: Text Processing and Wrapper Classes

The term ________ commonly is used to refer to a string that is part of another string.

The String class's valueOf method accepts a string representation as an argument and returns its equivalent integer value.

The ________ method returns a copy of the calling String object, in which all leading and trailing whitespace characters have been deleted.

What will be the tokens in the following statement? StringTokenizer st = New StringTokenizer("9-14-2014", "-", true) ;

What will be displayed after the following statements are executed? StringBuilder strb = New StringBuilder("We have lived in Chicago, Trenton, and Atlanta.") ; Strb.replace(17, 24, "Tampa") ; System.out.println(strb) ;

What will be displayed after the following code has been executed? Boolean matches; String str1 = "The cow jumped over the moon."; String str2 = "moon"; Matches = str1.endsWith(str2) ; System.out.println(matches) ;

Any ________ argument passed to the Character class's toLowerCase method or toUpperCase method is returned as it is.

For the following code, how many times would the while loop execute? StringTokenizer st = New StringTokenizer("Java programming is fun!") ; While (st.hasMoreTokens() ) System.out.println(st.nextToken() ) ;

What will be displayed after the following statements are executed? StringBuilder strb = new StringBuilder(12) ; Strb.append("The cow ") ; Strb.append("jumped over the ") ; Strb.append("moon.") ; System.out.println(strb) ;

You will cause an off-by-one error, when working with a character position within a string, if you think of the first position in a string as 1.

What will be displayed after the following statements are executed? String str = "red$green&blue#orange"; String[] tokens = str.split("[$&#]") ; For (String s : tokens) System.out.print(s + " ") ;

The Character wrapper class provides numerous methods for

In the ________ file format, when the data in a spreadsheet is exported, each row is written to a line, and the values in the cells are separated by commas. A) comma separated value B) extensible markup language C) excel binary D) data interchange

Which of the following import statements is required to use the StringTokenizer class?

Which of the following statements will display the maximum value that a double can hold?

You cannot assign a value to a wrapper class object.

A series of words or other items of data separated by spaces or other characters are known as

The StringBuilder class's insert method allows you to insert into the calling object's string

Which of the following statements converts an int variable named number to a string and stores the value in the String object variable named str?

The String class's ________ method accepts a value of any primitive data type as its argument and returns a string representation of the value.