# Java Math Class static double floor(double d) with example

Java Math Class static double floor(double d) method: Here, we are going to learn about the static double floor(double d) method of Math Class with its syntax and example.
Submitted by Preeti Jain, on August 22, 2019

## Math Class static double floor(double d)

• This method is available in java.lang package.
• In this method if the value of the given positive argument after decimal point is 0 or greater than 0 so in that case it returns the same number before decimal point else if the value of the given negative argument after decimal point is greater than 0 so it returns (the same number +1) before decimal point.
• This is a static method so this method is accessible with the class name too.
• The return type of this method is double that means it returns the greatest floating-point value of the given argument and the argument value may be less than or equal to the given argument.
• In this method, we pass only one parameter as an argument in the method of Math class.
• This method does not throw any exception.

Syntax:

```    public static double floor(double d){
}
```

Parameter(s):

double d – A double value whose greatest floating-poin value to be found.

Note:

• If we pass "NaN", it returns "NaN".
• If we pass a positive infinity, it returns the same i.e. a positive infinity.
• If we pass a negative infinity, it returns the same i.e. a negative infinity.
• If we pass 0 (-0 or 0), it returns the same.

Return value:

The return type of this method is double, it returns the greatest floating-point value of the given value.

### Java program to demonstrate example of floor(double d) method

```// Java program to demonstrate the example of floor(double d)
// method of Math Class

public class FloorMethod {
public static void main(String[] args) {
// Here we are declaring few variables
double d1 = 7.0 / 0.0;
double d2 = -7.0 / 0.0;
double d3 = 0.0;
double d4 = -0.0;
double d5 = -123.1;
double d6 = 123.456;

// Display previous value of d1,d2,d3,d4,d5 and d6
System.out.println(" Before implementing floor() so the value of d1 is :" + d1);
System.out.println(" Before implementing floor() so the value of d2 is :" + d2);
System.out.println(" Before implementing floor() so the value of d3 is :" + d3);
System.out.println(" Before implementing floor() so the value of d4 is :" + d4);
System.out.println(" Before implementing floor() so the value of d4 is :" + d5);
System.out.println(" Before implementing floor() so the value of d4 is :" + d6);

// Here , we will get (Infinity) because we are passing parameter
// whose value is (infinity)
System.out.println("After implementing floor() so the value of d1 is :" + Math.floor(d1));

// Here , we will get (-Infinity) because we are passing parameter
// whose value is (-infinity)
System.out.println("After implementing floor() so the value of d2 is :" + Math.floor(d2));

// Here , we will get (0.0) because we are passing parameter
// whose value is (0.0)
System.out.println("After implementing floor() so the value of d3 is :" + Math.floor(d3));

// Here , we will get (-0.0) because we are passing parameter
// whose value is (-0.0)
System.out.println("After implementing floor() so the value of d4 is :" + Math.floor(d4));

// Here , we will get (-124.0) because we are passing parameter
// whose value is (-123.1)
System.out.println("After implementing floor() so the value of d5 is :" + Math.floor(d5));

// Here , we will get (123.0) because we are passing parameter
// whose value is (123.456)
System.out.println("After implementing floor() so the value of d6 is :" + Math.floor(d6));
}
}
```

Output

```E:\Programs>javac FloorMethod.java

E:\Programs>java FloorMethod
Before implementing floor() so the value of d1 is :Infinity
Before implementing floor() so the value of d2 is :-Infinity
Before implementing floor() so the value of d3 is :0.0
Before implementing floor() so the value of d4 is :-0.0
Before implementing floor() so the value of d4 is :-123.1
Before implementing floor() so the value of d4 is :123.456

After implementing floor() so the value of d1 is :Infinity
After implementing floor() so the value of d2 is :-Infinity
After implementing floor() so the value of d3 is :0.0
After implementing floor() so the value of d4 is :-0.0
After implementing floor() so the value of d5 is :-124.0
After implementing floor() so the value of d6 is :123.0
```

TOP Interview Coding Problems/Challenges

Languages: » C » C++ » C++ STL » Java » Data Structure » C#.Net » Android » Kotlin » SQL
Web Technologies: » PHP » Python » JavaScript » CSS » Ajax » Node.js » Web programming/HTML
Solved programs: » C » C++ » DS » Java » C#
Aptitude que. & ans.: » C » C++ » Java » DBMS
Interview que. & ans.: » C » Embedded C » Java » SEO » HR
CS Subjects: » CS Basics » O.S. » Networks » DBMS » Embedded Systems » Cloud Computing
» Machine learning » CS Organizations » Linux » DOS
More: » Articles » Puzzles » News/Updates