(1) Write a Java program that prompts the user to enter an integer number, then it computes its factorial. The integer number should be typed in by the user in response to a prompt message.

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
Section: Chapter Questions
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Follow the instructions please
Here are sample runs of the program:
Enter a number:
5
The factorial of 5 is 120
Enter a number:
The factorial of 0 is 1
Enter a number:
-5
The number cannot be negative
Transcribed Image Text:Here are sample runs of the program: Enter a number: 5 The factorial of 5 is 120 Enter a number: The factorial of 0 is 1 Enter a number: -5 The number cannot be negative
(1) Write a Java program that prompts the user to enter an integer number, then it
computes its factorial. The integer number should be typed in by the user in response
to a prompt message.
Hint:
The factorial of a number n can be recursively defined as follows:
0! = 1;
n! = n x (n - 1)! , where n > 0
Explanation:
0! = 1
Factorial of 0 is 1.
1! = 1
Factorial of 1 is 1.
2! = 2x1= 2
Factorial of 2 is 2.
3! = 3x2x1 = 6
Factorial of 3 is 6.
4! = 4×3×2×1 = 24
Factorial of 4 is 24.
n! = nx(n-1)x(n-2)x...x3×2×1
Factorial of n is the product of nx (n–1)×(n–2)x...x3×2×1
Your program must consider the following specifications:
Use Factorial as the name of your class.
Type your name and student number above the class declaration using a
block/paragraph comment.
Use documentation, comments and code style.
Use significant and appropriate identifiers.
Use appropriate data type for the variables.
Use long type to hold the result of the factorial.
Transcribed Image Text:(1) Write a Java program that prompts the user to enter an integer number, then it computes its factorial. The integer number should be typed in by the user in response to a prompt message. Hint: The factorial of a number n can be recursively defined as follows: 0! = 1; n! = n x (n - 1)! , where n > 0 Explanation: 0! = 1 Factorial of 0 is 1. 1! = 1 Factorial of 1 is 1. 2! = 2x1= 2 Factorial of 2 is 2. 3! = 3x2x1 = 6 Factorial of 3 is 6. 4! = 4×3×2×1 = 24 Factorial of 4 is 24. n! = nx(n-1)x(n-2)x...x3×2×1 Factorial of n is the product of nx (n–1)×(n–2)x...x3×2×1 Your program must consider the following specifications: Use Factorial as the name of your class. Type your name and student number above the class declaration using a block/paragraph comment. Use documentation, comments and code style. Use significant and appropriate identifiers. Use appropriate data type for the variables. Use long type to hold the result of the factorial.
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