Getting the first character of a string: A string consists of characters. The indexing for string starts from “0” in right to left direction and “-1” from left to right direction. Each character of a string can be read using “charAt()” method...

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Answer 1

Expert Solution & Answer

Chapter 2, Problem 24RE

Explanation of Solution

Getting the first character of a string:

A string consists of characters.

The indexing for string starts from “0” in right to left direction and “-1” from left to right direction.

Each character of a string can be read using “charAt()” method...

Explanation of Solution

Getting the last character of a string:

A string is a collection of characters.

The string character can be read by invoking the method “charAt()”

The last character of a string can be extracted by passing positi...

Explanation of Solution

Removing first character from the string:

Strings in java are immutable which means string cannot be modified once created.

To remove the first character from the string, the user can extract the substring containing the original string except the first character using “substring ()” method...

Explanation of Solution

Removing last character from the string:

The string cannot be modified once created, because java strings are immutable.

To remove the last character from the string, the user can extract the substring containing the original string except the last character using “substring ()” method...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

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3. Problem Description: Define the Circle2D class that contains: Two double data fields named x and y that specify the center of the circle with get methods. • A data field radius with a get method. • A no-arg constructor that creates a default circle with (0, 0) for (x, y) and 1 for radius. • A constructor that creates a circle with the specified x, y, and radius. • A method getArea() that returns the area of the circle. • A method getPerimeter() that returns the perimeter of the circle. • • • A method contains(double x, double y) that returns true if the specified point (x, y) is inside this circle. See Figure (a). A method contains(Circle2D circle) that returns true if the specified circle is inside this circle. See Figure (b). A method overlaps (Circle2D circle) that returns true if the specified circle overlaps with this circle. See the figure below. р O со (a) (b) (c)< Figure (a) A point is inside the circle. (b) A circle is inside another circle. (c) A circle overlaps another…

1. Explain in detail with examples each of the following fundamental security design principles: economy of mechanism, fail-safe default, complete mediation, open design, separation of privilege, least privilege, least common mechanism, psychological acceptability, isolation, encapsulation, modularity, layering, and least astonishment.

Security in general means the protection of an asset. In the context of computer and network security, explore and explain what assets must be protected within an online university. What the threats are to the security of these assets, and what countermeasures are available to mitigate and protect the organization from such threats. For each of the assets you identify, assign an impact level (low, moderate, or high) for the loss of confidentiality, availability, and integrity. Justify your answers.

Answer 2

Expert Solution & Answer

Chapter 2, Problem 24RE

Explanation of Solution

Getting the first character of a string:

A string consists of characters.

The indexing for string starts from “0” in right to left direction and “-1” from left to right direction.

Each character of a string can be read using “charAt()” method...

Explanation of Solution

Getting the last character of a string:

A string is a collection of characters.

The string character can be read by invoking the method “charAt()”

The last character of a string can be extracted by passing positi...

Explanation of Solution

Removing first character from the string:

Strings in java are immutable which means string cannot be modified once created.

To remove the first character from the string, the user can extract the substring containing the original string except the first character using “substring ()” method...

Explanation of Solution

Removing last character from the string:

The string cannot be modified once created, because java strings are immutable.

To remove the last character from the string, the user can extract the substring containing the original string except the last character using “substring ()” method...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Expert Solution & Answer

Chapter 2, Problem 24RE

Explanation of Solution

Getting the first character of a string:

A string consists of characters.

The indexing for string starts from “0” in right to left direction and “-1” from left to right direction.

Each character of a string can be read using “charAt()” method...

Explanation of Solution

Getting the last character of a string:

A string is a collection of characters.

The string character can be read by invoking the method “charAt()”

The last character of a string can be extracted by passing positi...

Explanation of Solution

Removing first character from the string:

Strings in java are immutable which means string cannot be modified once created.

To remove the first character from the string, the user can extract the substring containing the original string except the first character using “substring ()” method...

Explanation of Solution

Removing last character from the string:

The string cannot be modified once created, because java strings are immutable.

To remove the last character from the string, the user can extract the substring containing the original string except the last character using “substring ()” method...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Expert Solution & Answer

Chapter 2, Problem 24RE

Explanation of Solution

Getting the first character of a string:

A string consists of characters.

The indexing for string starts from “0” in right to left direction and “-1” from left to right direction.

Each character of a string can be read using “charAt()” method...

Explanation of Solution

Getting the last character of a string:

A string is a collection of characters.

The string character can be read by invoking the method “charAt()”

The last character of a string can be extracted by passing positi...

Explanation of Solution

Removing first character from the string:

Strings in java are immutable which means string cannot be modified once created.

To remove the first character from the string, the user can extract the substring containing the original string except the first character using “substring ()” method...

Explanation of Solution

Removing last character from the string:

The string cannot be modified once created, because java strings are immutable.

To remove the last character from the string, the user can extract the substring containing the original string except the last character using “substring ()” method...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Expert Solution & Answer

Answer 6

Expert Solution & Answer

Answer 7

Chapter 2, Problem 24RE

Explanation of Solution

Getting the first character of a string:

A string consists of characters.

The indexing for string starts from “0” in right to left direction and “-1” from left to right direction.

Each character of a string can be read using “charAt()” method...

Explanation of Solution

Getting the last character of a string:

A string is a collection of characters.

The string character can be read by invoking the method “charAt()”

The last character of a string can be extracted by passing positi...

Explanation of Solution

Removing first character from the string:

Strings in java are immutable which means string cannot be modified once created.

To remove the first character from the string, the user can extract the substring containing the original string except the first character using “substring ()” method...

Explanation of Solution

Removing last character from the string:

The string cannot be modified once created, because java strings are immutable.

To remove the last character from the string, the user can extract the substring containing the original string except the last character using “substring ()” method...

Answer 8

Chapter 2, Problem 24RE

Explanation of Solution

Getting the first character of a string:

A string consists of characters.

The indexing for string starts from “0” in right to left direction and “-1” from left to right direction.

Each character of a string can be read using “charAt()” method...

Answer 9

Chapter 2, Problem 24RE

Explanation of Solution

Getting the first character of a string:

A string consists of characters.

The indexing for string starts from “0” in right to left direction and “-1” from left to right direction.

Each character of a string can be read using “charAt()” method...

Answer 10

Explanation of Solution

Getting the last character of a string:

A string is a collection of characters.

The string character can be read by invoking the method “charAt()”

The last character of a string can be extracted by passing positi...

Answer 11

Explanation of Solution

Getting the last character of a string:

A string is a collection of characters.

The string character can be read by invoking the method “charAt()”

The last character of a string can be extracted by passing positi...

Answer 12

Explanation of Solution

Removing first character from the string:

Strings in java are immutable which means string cannot be modified once created.

To remove the first character from the string, the user can extract the substring containing the original string except the first character using “substring ()” method...

Answer 13

Explanation of Solution

Removing first character from the string:

Strings in java are immutable which means string cannot be modified once created.

To remove the first character from the string, the user can extract the substring containing the original string except the first character using “substring ()” method...

Answer 14

Explanation of Solution

Removing last character from the string:

The string cannot be modified once created, because java strings are immutable.

To remove the last character from the string, the user can extract the substring containing the original string except the last character using “substring ()” method...

Answer 15

Explanation of Solution

Removing last character from the string:

The string cannot be modified once created, because java strings are immutable.

To remove the last character from the string, the user can extract the substring containing the original string except the last character using “substring ()” method...

Answer 16

Expert Solution & Answer

Answer 17

Expert Solution & Answer

Answer 18

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Check out a sample textbook solution

See solution

Answer 19

Ch. 2.1 - Declare a variable suitable for holding the number...Ch. 2.1 - What is wrong with the following variable...Ch. 2.1 - Declare and initialize two variables, unitPrice...Ch. 2.1 - Prob. 4SC Ch. 2.1 - Some drinks are sold in four-packs instead of...Ch. 2.1 - Prob. 6SC Ch. 2.1 - Prob. 7SC Ch. 2.1 - Prob. 8SC Ch. 2.1 - How would you explain assignment using the parking...Ch. 2.2 - A bank account earns interest once per year. In...

Getting the first character of a string: A string consists of characters. The indexing for string starts from “0” in right to left direction and “-1” from left to right direction. Each character of a string can be read using “charAt()” method...

Concept explainers

Explanation of Solution

Getting the first character of a string:

A string consists of characters.

The indexing for string starts from “0” in right to left direction and “-1” from left to right direction.

Each character of a string can be read using “charAt()” method...

Explanation of Solution

Getting the last character of a string:

A string is a collection of characters.

The string character can be read by invoking the method “charAt()”

The last character of a string can be extracted by passing positi...

Explanation of Solution

Removing first character from the string:

Strings in java are immutable which means string cannot be modified once created.

To remove the first character from the string, the user can extract the substring containing the original string except the first character using “substring ()” method...

Explanation of Solution

Removing last character from the string:

The string cannot be modified once created, because java strings are immutable.

To remove the last character from the string, the user can extract the substring containing the original string except the last character using “substring ()” method...

Want to see the full answer?

Chapter 2 Solutions

Getting the first character of a string: A string consists of characters. The indexing for string starts from “0” in right to left direction and “-1” from left to right direction. Each character of a string can be read using “charAt()” method...

Concept explainers

Explanation of Solution

Getting the first character of a string: A string consists of characters. The indexing for string starts from “0” in right to left direction and “-1” from left to right direction. Each character of a string can be read using “charAt()” method...

Explanation of Solution

Getting the last character of a string: A string is a collection of characters. The string character can be read by invoking the method “charAt()” The last character of a string can be extracted by passing positi...

Explanation of Solution

Removing first character from the string: Strings in java are immutable which means string cannot be modified once created. To remove the first character from the string, the user can extract the substring containing the original string except the first character using “substring ()” method...

Explanation of Solution

Removing last character from the string: The string cannot be modified once created, because java strings are immutable. To remove the last character from the string, the user can extract the substring containing the original string except the last character using “substring ()” method...

Want to see the full answer?

Chapter 2 Solutions

Getting the first character of a string:

A string consists of characters.

The indexing for string starts from “0” in right to left direction and “-1” from left to right direction.

Each character of a string can be read using “charAt()” method...

Getting the last character of a string:

A string is a collection of characters.

The string character can be read by invoking the method “charAt()”

The last character of a string can be extracted by passing positi...

Removing last character from the string:

The string cannot be modified once created, because java strings are immutable.

To remove the last character from the string, the user can extract the substring containing the original string except the last character using “substring ()” method...