How can we find the absolute value of a number using Java?

To find the absolute value of a number in Java, you can use the abs() method in the Math class. The specific steps are as follows:

1. Import the Math class: Add the following import statement at the beginning of the Java program:

import java.lang.Math;

1. Calculate the absolute value using the abs() method: To find the absolute value, use the abs() method from the Math class and pass the number you want to find the absolute value of as a parameter. For example:

int number = -5;
int absoluteValue = Math.abs(number);

In the above code, assign the variable number to -5, then use Math.abs(number) to find the absolute value, and assign the result to the variable absoluteValue.

1. Print the result: The results can be printed using the System.out.println() method for viewing. For example:

System.out.println("绝对值为：" + absoluteValue);

The complete example code is as follows:

import java.lang.Math;

public class AbsoluteValue {
    public static void main(String[] args) {
        int number = -5;
        int absoluteValue = Math.abs(number);
        System.out.println("绝对值为：" + absoluteValue);
    }
}

Running the above code will output:

绝对值为：5