Question 1

To find the character at a certain index position within a String, use the method ________.

Accepted Answer

A)  getChars, with the index as an argument 
B)  getCharAt, with the index as an argument 
C)  charAt, with the index as an argument 
D)  charAt, with the character you are searching for as an argument 
A)  getChars, with the index as an argument 
B)  getCharAt, with the index as an argument 
C)  charAt, with the index as an argument 
D)  charAt, with the character you are searching for as an argument

Question 2

A String constructor cannot be passed ________.

Accepted Answer

A)  char arrays. 
B)  int arrays. 
C)  byte arrays. 
D)  Strings. 
A)  char arrays. 
B)  int arrays. 
C)  byte arrays. 
D)  Strings.

Question 3

The String method substring returns ________.

Accepted Answer

A)  a char 
B)  a String 
C)  void 
D)  a char[] 
A)  a char 
B)  a String 
C)  void 
D)  a char[]

Question 4

Given the following declarations:
StringBuilder buffer = new StringBuilder("Testing Testing");
Buffer.setLength(7);
Buffer.ensureCapacity(5);
Which of the following is true?

Accepted Answer

A)  buffer has capacity 5. 
B)  buffer has capacity 31. 
C)  buffer has content "Testin". 
D)  buffer has length 15. 
A)  buffer has capacity 5. 
B)  buffer has capacity 31. 
C)  buffer has content "Testin". 
D)  buffer has length 15.

Question 5

Consider the Java segment:
String line1 = new String("c = 1 + 2 + 3") ;
StringTokenizer tok = new StringTokenizer(line1, "+=");
String foo = tok.nextToken();
String bar = tok.nextToken();
The values of foo and bar are:

Accepted Answer

A)  foo is "c ", bar is " = ". 
B)  foo is "c", bar is " ". 
C)  foo is " = ", bar is " + ". 
D)  foo is "c ", bar is " 1 ". 
A)  foo is "c ", bar is " = ". 
B)  foo is "c", bar is " ". 
C)  foo is " = ", bar is " + ". 
D)  foo is "c ", bar is " 1 ".

Question 6

Consider the Java segment:
String line1 = new String("c = 1 + 2 + 3") ;
StringTokenizer tok = new StringTokenizer(line1);
Int count = tok.countTokens();
The value of count is ________.

Accepted Answer

A)  8. 
B)  7. 
C)  13. 
D)  4. 
A)  8. 
B)  7. 
C)  13. 
D)  4.

To find the character at a certain index position within a String, use the method ________.

A String constructor cannot be passed ________.

The String method substring returns ________.

Given the following declarations: StringBuilder buffer = new StringBuilder("Testing Testing"); Buffer.setLength(7); Buffer.ensureCapacity(5); Which of the following is true?

Consider the Java segment: String line1 = new String("c = 1 + 2 + 3") ; StringTokenizer tok = new StringTokenizer(line1, "+="); String foo = tok.nextToken(); String bar = tok.nextToken(); The values of foo and bar are:

Consider the Java segment: String line1 = new String("c = 1 + 2 + 3") ; StringTokenizer tok = new StringTokenizer(line1); Int count = tok.countTokens(); The value of count is ________.

Introduction to Computers and Java

Introduction to Java Applications

Control Statements

Control Statements

Methods

Arrays and Arraylists

Introduction to Classes and Objects

Classes and Objects: a Deeper Look

Object Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Exception Handling

Gui Components

Graphics and Java 2D

Files, Streams and Object Serialization

Generic Collections

Lambdas

Recursion

Searching, Sorting and Big O

Generic Classes and Methods

Custom Generic Data Structures

GUI

Concurrency

Accessing Databases With JDBC

JavaFX

Filters

Exam 14: Fundamentals of Characters and Strings

To find the character at a certain index position within a String, use the method ________.

A String constructor cannot be passed ________.

The String method substring returns ________.

Given the following declarations: StringBuilder buffer = new StringBuilder("Testing Testing"); Buffer.setLength(7); Buffer.ensureCapacity(5); Which of the following is true?

Consider the Java segment: String line1 = new String("c = 1 + 2 + 3") ; StringTokenizer tok = new StringTokenizer(line1, "+="); String foo = tok.nextToken(); String bar = tok.nextToken(); The values of foo and bar are:

Consider the Java segment: String line1 = new String("c = 1 + 2 + 3") ; StringTokenizer tok = new StringTokenizer(line1); Int count = tok.countTokens(); The value of count is ________.

Introduction to Computers and Java

Introduction to Java Applications

Control Statements

Control Statements

Methods

Arrays and Arraylists

Introduction to Classes and Objects

Classes and Objects: a Deeper Look

Object Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Exception Handling

Gui Components

Graphics and Java 2D

Files, Streams and Object Serialization

Generic Collections

Lambdas

Recursion

Searching, Sorting and Big O

Generic Classes and Methods

Custom Generic Data Structures

GUI

Concurrency

Accessing Databases With JDBC

JavaFX

Filters