Java Math.floor() method
DevSniper
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public static double floor(double a)
Java Math.floor() is a in-build static method provided by Math class to perform a specific mathematical operation. It is used to find the largest double value that is less than or equal to the argument and is equal to a mathematical integer.
- If the parameter is a double value, either positive or negative, this method will return floor value.
- If the parameter is NaN this method will return NaN. If you want to understand NaN in Java click me for NaN in Java
- If the parameter is positive Infinity, this method will return +Infinity. To understand +Infinity click me for +Infinity in Java
- If the parameter is negative Infinity, this method will return -Infinity. To understand -Infinity chick me for -Infinity in Java
Java Math.floor with positive value
public class Program
{
public static void main(String []args)
{
System.out.println("Math.floor(10) = "+ Math.floor(10));
System.out.println("Math.floor(10L) = "+ Math.floor(10L));
System.out.println("Math.floor(10f) = "+ Math.floor(10f));
System.out.println("Math.floor(10.0) = "+ Math.floor(10.0));
System.out.println("Math.floor(9.7f) = "+ Math.floor(9.7f));
System.out.println("Math.floor(9.5f) = "+ Math.floor(9.5f));
System.out.println("Math.floor(9.1f) = "+ Math.floor(9.1f));
System.out.println("Math.floor(9.7) = "+ Math.floor(9.7));
System.out.println("Math.floor(9.5) = "+ Math.floor(9.5));
System.out.println("Math.floor(9.1) = "+ Math.floor(9.1));
}
}Math.floor(10) = 10.0 Math.floor(10L) = 10.0 Math.floor(10f) = 10.0 Math.floor(10.0) = 10.0 Math.floor(9.7f) = 9.0 Math.floor(9.5f) = 9.0 Math.floor(9.1f) = 9.0 Math.floor(9.7) = 9.0 Math.floor(9.5) = 9.0 Math.floor(9.1) = 9.0
Java Math.floor with negative value
public class Program
{
public static void main(String []args)
{
System.out.println("Math.floor(-10) = "+ Math.floor(-10));
System.out.println("Math.floor(-10L) = "+ Math.floor(-10L));
System.out.println("Math.floor(-10f) = "+ Math.floor(-10f));
System.out.println("Math.floor(-10.0) = "+ Math.floor(-10.0));
System.out.println("Math.floor(-9.7f) = "+ Math.floor(-9.7f));
System.out.println("Math.floor(-9.5f) = "+ Math.floor(-9.5f));
System.out.println("Math.floor(-9.1f) = "+ Math.floor(-9.1f));
System.out.println("Math.floor(-9.7) = "+ Math.floor(-9.7));
System.out.println("Math.floor(-9.5) = "+ Math.floor(-9.5));
System.out.println("Math.floor(-9.1) = "+ Math.floor(-9.1));
}
}Math.floor(-10) = -10.0 Math.floor(-10L) = -10.0 Math.floor(-10f) = -10.0 Math.floor(-10.0) = -10.0 Math.floor(-9.7f) = -10.0 Math.floor(-9.5f) = -10.0 Math.floor(-9.1f) = -10.0 Math.floor(-9.7) = -10.0 Math.floor(-9.5) = -10.0 Math.floor(-9.1) = -10.0
Java Math.floor with positive Infinity
public class Program
{
public static void main(String []args)
{
System.out.println("Math.floor(10/0.0) = "+ Math.floor(10/0.0) );
System.out.println("Math.floor(10L/0.0) = "+ Math.floor(10L/0.0) );
System.out.println("Math.floor(10f/0.0) = "+ Math.floor(10/0.0) );
System.out.println("Math.floor(10.1/0.0) = "+ Math.floor(10.1/0.0) );
System.out.println("Math.floor(10f/0) = "+ Math.floor(10f/0) );
System.out.println("Math.floor(10f/-0) = "+ Math.floor(10f/-0) );
System.out.println("Math.floor(-10/-0f) = "+ Math.floor(-10/-0f) );
System.out.println("Math.floor(10.1/0) = "+ Math.floor(10.1/0) );
System.out.println("Math.floor(10.1/-0) = "+ Math.floor(10.1/-0) );
System.out.println("Math.floor(-10.1/-0.0) = "+ Math.floor(-10/-0.0) );
}
}Math.floor(10/0.0) = Infinity Math.floor(10L/0.0) = Infinity Math.floor(10f/0.0) = Infinity Math.floor(10.1/0.0) = Infinity Math.floor(10f/0) = Infinity Math.floor(10f/-0) = Infinity Math.floor(-10/-0f) = Infinity Math.floor(10.1/0) = Infinity Math.floor(10.1/-0) = Infinity Math.floor(-10.1/-0.0) = Infinity
Java Math.floor with negative Infinity
public class Program
{
public static void main(String []args)
{
System.out.println("Math.floor(10/-0.0) = "+ Math.floor(10/-0.0) );
System.out.println("Math.floor(10L/-0.0) = "+ Math.floor(10L/-0.0) );
System.out.println("Math.floor(10f/-0.0) = "+ Math.floor(10f/-0.0) );
System.out.println("Math.floor(-10f/0.0) = "+ Math.floor(-10f/0.0) );
System.out.println("Math.floor(-10f/0) = "+ Math.floor(-10f/0) );
System.out.println("Math.floor(10.1/-0.0) = "+ Math.floor(10.1/-0.0) );
System.out.println("Math.floor(-10.1/0.0) = "+ Math.floor(-10.1/0.0) );
System.out.println("Math.floor(-10.1/0) = "+ Math.floor(-10.1/0) );
}
}Math.floor(10/-0.0) = -Infinity Math.floor(10L/-0.0) = -Infinity Math.floor(10f/-0.0) = -Infinity Math.floor(-10f/0.0) = -Infinity Math.floor(-10f/0) = -Infinity Math.floor(10.1/-0.0) = -Infinity Math.floor(-10.1/0.0) = -Infinity Math.floor(-10.1/0) = -Infinity
Java Math.floor with NaN
public class Program
{
public static void main(String []args)
{
System.out.println("Math.floor(0/0.0) = "+ Math.floor(0/0.0) );
System.out.println("Math.floor(0/-0.0) = "+ Math.floor(0/-0.0) );
System.out.println("Math.floor(-0/0.0) = "+ Math.floor(-0/0.0) );
System.out.println("Math.floor(-0/-0.0) = "+ Math.floor(-0/-0.0) );
System.out.println("Math.floor(0/0f) = "+ Math.floor(0/0f) );
System.out.println("Math.floor(0/-0f) = "+ Math.floor(0/-0f) );
System.out.println("Math.floor(-0/0f) = "+ Math.floor(-0/0f) );
System.out.println("Math.floor(-0/-0f) = "+ Math.floor(-0/-0f) );
}
}Math.floor(0/0.0) = NaN Math.floor(0/-0.0) = NaN Math.floor(-0/0.0) = NaN Math.floor(-0/-0.0) = NaN Math.floor(0/0f) = NaN Math.floor(0/-0f) = NaN Math.floor(-0/0f) = NaN Math.floor(-0/-0f) = NaN
- This method is helpful in scenarios where precise handling of numerical data is required such as in geometric calculations , financial calculations etc.
- This method is useful in any situation where precision in rounding is crucial.
- This method is useful to achieve accurate results in programming endeavors, ensuring robustness and correctness in mathematical operations.