Java Math floor() Method
Java Math Class
Java Math class provides several methods to perform several operations on math calculations like max(), min(), sin(), cos(), round(), ceil(), floor(), abs() etc.
The java.lang.Math class contains various methods for performing basic numeric operations
Here, in the page we will discuss about the math floor() Method in java.
Java Math floor() Method :
This function returns the largest (closest to positive infinity) double value that is both less than or equal to the argument and equal to an integer in mathematics.
Special Points :
- The result is the same as the argument if the argument’s value is already an integer in mathematics.
- The argument and the result are identical if the argument is NaN, an infinity, a positive zero, or a negative zero.
Syntax :
public static double floor(double a)
Example 1 :
public class Main{
public static void main(String[] args) {
//declaring variables
double x = 50.3;
double y = 75.9;
double z = -55.2;
double e = -30.1;
//printing out the results of the floor method
System.out.println("Math.floor(" + x + ") = " + Math.floor(x));
System.out.println("Math.floor(" + y + ") = " + Math.floor(y));
System.out.println("Math.floor(" + z + ") = " + Math.floor(z));
System.out.println("Math.floor(" + e + ") = " + Math.floor(e));
}
}
Output :
Math.floor(50.3) = 50.0 Math.floor(75.9) = 75.0 Math.floor(-55.2) = -56.0 Math.floor(-30.1) = -31.0
Example 2 :
public class Main{
public static void main(String[] args) {
//declaring variables
double x = 50.3/0;
double y = 0.0;
double z = -0.0;
double e = -30.1;
//pringing output for infinite input
System.out.println("Math.floor(" + x + ") = " + Math.floor(x));
//printing output for positive and negative input
System.out.println("Math.floor(" + y + ") = " + Math.floor(y));
System.out.println("Math.floor(" + z + ") = " + Math.floor(z));
//printing output for negative input
System.out.println("Math.floor(" + e + ") = " + Math.floor(e));
}
}
Output :
Math.floor(50.3/0) = Infinity Math.floor(0.0) = 0.0 Math.floor(-0.0) = -0.0 Math.floor(-30.1) = -31.0
If the argument value is already equal to a mathematical integer, then the result is the same as the argument.
If the argument is NaN or an infinity or positive zero or negative zero, then the result is the same as the argument.
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