java 将一个数变为负数

Java 将一个数变为负数

![journey](

Introduction

Java is a high-level, object-oriented programming language widely used for developing web applications, enterprise software, and mobile applications. In this article, we will explore how to convert a number to a negative value in Java.

Solution

To convert a number to a negative value, we can simply multiply the number by -1. This will change the sign of the number, making it negative. Let's see an example in Java.

Example

double number = 12.34;
double negativeNumber = number * -1;
System.out.println(negativeNumber); // Output: -12.34

In the above example, we initialize a variable number with a positive value 12.34. We then multiply the number by -1 and store the result in the variable negativeNumber. Finally, we print the negativeNumber, which will output -12.34.

Conclusion

In Java, we can easily convert a number to a negative value by multiplying it by -1. This is a simple and straightforward way to change the sign of a number. Remember to use the appropriate data type (double, int, etc.) based on your specific use case. Happy coding!