Java Math Exercises: Accept a float value of number and return a rounded float value
Java Math Exercises: Exercise-10 with Solution
Write a Java program to accept a float value of number and return a rounded float value.
Sample data:
Input a float number: 12.51
The rounded value of 12.510000 is: 13.00
Input a float number: 12.49999
The rounded value of 12.499990 is: 12.00
Sample Solution:
Java Code:
import java.util.*;
public class Example10 {
public static void main(String[] args)
{
Scanner in = new Scanner(System.in);
System.out.print("Input a float number: ");
float x = in.nextFloat();
System.out.printf("The rounded value of %f is: %.2f",x, round_num(x));
System.out.printf("\n");
}
public static float round_num(float fn)
{
float f_num = (float)Math.floor(fn);
float c_num = (float)Math.ceil(fn);
if ((fn - f_num) > (c_num - fn))
{
return c_num;
}
else if ((c_num - fn) > (fn - f_num))
{
return f_num;
}
else
{
return c_num;
}
}
}
Sample Output:
Input a float number: 12.53 The rounded value of 12.530000 is: 13.00
Flowchart:
Java Code Editor:
Contribute your code and comments through Disqus.
Previous: Write a Java program to convert a float value to absolute value.
Next: Write a Java program to accept two integers and return true if the either one is 15 or if their sum or difference is 15.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
Java: Tips of the Day
How to sort an ArrayList?
Collections.sort(testList); Collections.reverse(testList);
That will do what you want. Remember to import Collections though!
Ref: https://bit.ly/32urdSe
- New Content published on w3resource:
- HTML-CSS Practical: Exercises, Practice, Solution
- Java Regular Expression: Exercises, Practice, Solution
- Scala Programming Exercises, Practice, Solution
- Python Itertools exercises
- Python Numpy exercises
- Python GeoPy Package exercises
- Python Pandas exercises
- Python nltk exercises
- Python BeautifulSoup exercises
- Form Template
- Composer - PHP Package Manager
- PHPUnit - PHP Testing
- Laravel - PHP Framework
- Angular - JavaScript Framework
- Vue - JavaScript Framework
- Jest - JavaScript Testing Framework