Write a Java program such that it consists of 2 classes: 1. a class that serves as the driver (contains main()) 2. a class that contains multiple private methods that compute and display a. area of a triangle (need base and height) b area of a circle (use named constant for PI) (need radius) c. area of rectangle (width and length) d. area of a square (side) e. surface area of a solid cylinder (height and radius of base) N.B. You will also need an accessor public method (interface) that is called from the driver. This method should: a. Display a menu of options to the user. (Suggest use switch statement) b. Accept input from the user (keyboard) representing parameter values needed.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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### Java Programming Exercise: Creating a Class for Area Calculations

This exercise involves writing a Java program consisting of two classes:

1. **Driver Class**: 
   - Contains the `main()` method.

2. **Computation Class**:
   - Includes private methods to compute and display:
     1. **Area of a Triangle**: Requires base and height.
     2. **Area of a Circle**: Use a named constant for PI; requires radius.
     3. **Area of a Rectangle**: Requires width and length.
     4. **Area of a Square**: Requires side length.
     5. **Surface Area of a Solid Cylinder**: Requires height and radius of the base.

#### Implementation Details

- **Public Method (Interface)**:
  - Called from the driver class.
  - Should:
    a. Display a menu of options to the user (suggest using a switch statement).
    b. Accept input from the user representing parameter values needed.
    c. Invoke private methods in the class to perform the necessary area computations.

- **Additional Instructions**:
  - Add comments throughout your code as appropriate for clarity.

This program will help in understanding the concepts of classes, methods, and user interaction in Java.
Transcribed Image Text:### Java Programming Exercise: Creating a Class for Area Calculations This exercise involves writing a Java program consisting of two classes: 1. **Driver Class**: - Contains the `main()` method. 2. **Computation Class**: - Includes private methods to compute and display: 1. **Area of a Triangle**: Requires base and height. 2. **Area of a Circle**: Use a named constant for PI; requires radius. 3. **Area of a Rectangle**: Requires width and length. 4. **Area of a Square**: Requires side length. 5. **Surface Area of a Solid Cylinder**: Requires height and radius of the base. #### Implementation Details - **Public Method (Interface)**: - Called from the driver class. - Should: a. Display a menu of options to the user (suggest using a switch statement). b. Accept input from the user representing parameter values needed. c. Invoke private methods in the class to perform the necessary area computations. - **Additional Instructions**: - Add comments throughout your code as appropriate for clarity. This program will help in understanding the concepts of classes, methods, and user interaction in Java.
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