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Java floor() method with Examples
  • Last Updated : 08 Apr, 2018

The java.lang.Math.floor() returns the double value that is less than or equal to the argument and is equal to the nearest mathematical integer.
Note:

  • If the argument is Integer, then the result is Integer.
  • If the argument is NaN or an infinity or positive zero or negative zero, then the result is the same as the argument.

public static double floor(double a)
a : the argument whose floor value is to be determined
Returns : This method returns the double value that is less than or equal
to the argument and is equal to the nearest mathematical integer.

Example :To show working of java.lang.Math.floor() method.




// Java program to demonstrate working
// of java.lang.Math.floor() method
import java.lang.Math;
  
class Gfg {
  
    // driver code
    public static void main(String args[])
    {
        double a = 4.3;
        double b = 1.0 / 0;
        double c = 0.0;
        double d = -0.0;
        double e = -2.3;
  
        System.out.println(Math.floor(a));
  
        // Input Infinity, Output Infinity
        System.out.println(Math.floor(b));
  
        // Input Positive Zero, Output Positive Zero
        System.out.println(Math.floor(c));
  
        // Input Negative Zero, Output Negative Zero
        System.out.println(Math.floor(d));
  
        // Input -2.3, Output -3.0
        // Nearest Integer(-3.0) < less than (-2.3)
        System.out.println(Math.floor(e));
    }
}

Output:

4.0
Infinity
0.0
-0.0
-3.0

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