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Write a method that returns n! given an integer n. Your method must use and return a BigInteger object. Note, you may need code like fact = fact.multiply (BigInteger.valueOf (i)); where i is an integer.

Write a method that returns n! given an integer n. Your method must use and return a BigInteger object. Note, you may need code like fact = fact.multiply (BigInteger.valueOf (i)); where i is an integer.

Database System Concepts
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
Problem 1PE
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Java 

**Factorial Method Using BigInteger in Java** **Objective:** Develop a method to calculate the factorial of a number `n` using the `BigInteger` class to handle large numbers. **Instructions:** 1. **Method Requirement:** - Create a method that computes `n!`, where `n` is an integer. - The method should utilize and return a `BigInteger` object. 2. **Implementation Guidance:** - To handle multiplication for large numbers, use: ```java fact = fact.multiply(BigInteger.valueOf(i)); ``` In this code snippet, `fact` is a `BigInteger` object, and `i` represents an integer in the calculation process. **Note:** The `BigInteger` class in Java allows operations on arbitrarily large integers, making it ideal for calculations that exceed the range of standard primitive data types like `int` or `long`.
Transcribed Image Text:**Factorial Method Using BigInteger in Java** **Objective:** Develop a method to calculate the factorial of a number `n` using the `BigInteger` class to handle large numbers. **Instructions:** 1. **Method Requirement:** - Create a method that computes `n!`, where `n` is an integer. - The method should utilize and return a `BigInteger` object. 2. **Implementation Guidance:** - To handle multiplication for large numbers, use: ```java fact = fact.multiply(BigInteger.valueOf(i)); ``` In this code snippet, `fact` is a `BigInteger` object, and `i` represents an integer in the calculation process. **Note:** The `BigInteger` class in Java allows operations on arbitrarily large integers, making it ideal for calculations that exceed the range of standard primitive data types like `int` or `long`.
Each of the following methods should be `static` and defined in a class called `Utilities`. Implement a second class called `Tester` that calls each of these methods.
Transcribed Image Text:Each of the following methods should be `static` and defined in a class called `Utilities`. Implement a second class called `Tester` that calls each of these methods.
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