EN
Java - Math.floor() method example
0 points
The Math.floor() function returns an integer value that is smaller than or equal to the argument - the result of round down operation.
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public class MathExample {2
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public static void main(String[] args) {4
System.out.println( Math.floor( 5 ) ); // 5.05
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System.out.println( Math.floor( 2.49 ) ); // 2.07
System.out.println( Math.floor( 2.50 ) ); // 2.08
System.out.println( Math.floor( 2.51 ) ); // 2.09
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System.out.println( Math.floor( -2.49 ) ); // -3.011
System.out.println( Math.floor( -2.50 ) ); // -3.012
System.out.println( Math.floor( -2.51 ) ); // -3.013
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System.out.println( Math.floor( 0.999 ) ); // 0.015
System.out.println( Math.floor( 1.001 ) ); // 1.016
System.out.println( Math.floor( -1.001 ) ); // -2.017
}18
}| Syntax |
xxxxxxxxxx1 package java.lang;2 3 public final class Math {4 5 public static double floor(double number) { ... }6 7 }
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| Parameters | number - double value (primitive value). |
| Result |
Rounded down If If If |
| Description | floor is a static method that takes only one parameter and returns a rounded down value. |
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public class MathExample {2
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static double floorPrecised(double number, int precision) {4
double power = Math.pow(10, precision);5
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return Math.floor(number * power) / power;7
}8
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public static void main(String[] args) {10
System.out.println( floorPrecised( 5 , 0 ) ); // 5.011
System.out.println( floorPrecised( 5. , 0 ) ); // 5.012
System.out.println( floorPrecised( .5, 0 ) ); // 0.013
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System.out.println( floorPrecised( 1.1234, 0 ) ); // 1.015
System.out.println( floorPrecised( 1.1234, 1 ) ); // 1.116
System.out.println( floorPrecised( 1.1235, 2 ) ); // 1.1217
System.out.println( floorPrecised( 1.1235, 3 ) ); // 1.12318
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System.out.println( floorPrecised( -1.1234, 0 ) ); // -2.020
System.out.println( floorPrecised( -1.1234, 1 ) ); // -1.221
System.out.println( floorPrecised( -1.1234, 2 ) ); // -1.1322
System.out.println( floorPrecised( -1.1234, 3 ) ); // -1.12423
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System.out.println( floorPrecised( 1234, -1 ) ); // 1230.025
System.out.println( floorPrecised( 1234, -2 ) ); // 1200.026
System.out.println( floorPrecised( 1234, -3 ) ); // 1000.027
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System.out.println( floorPrecised( 5_000.000_001, 0 ) ); // 5000.029
System.out.println( floorPrecised( 5_000.000_001, 6 ) ); // 5000.00000130
System.out.println( floorPrecised( 5_000.000_001, -3 ) ); // 5000.031
}32
}