(solved)Error in math extensions

Open Source Development Extension Development
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6

In Maths PI = 3.14...

this is float value so you need to return it into float type like this,

       @SimpleFunction(description = "")
       public float Pi() {
          return (float)Math.PI;
       }
1 Like
7

do you have any documentation about that?

8

may be but really as it said it is a "double" value

i did as
@SimpleFunction(description = "")
public double Pi() {
return (float)Math.PI;
}

1 Like
9

thats why error mentioned -double to int

1 Like
10

This one is not possible

correct code is

@SimpleFunction(description = "")
public double Pi() {
   return (double)Math.PI;
}
11

i think you are right @HIFI_APPS

1 Like
12

any way thanks both i got this idea from you both
@preetvadaliya,@salman_dev

13

First you need to learn about data types some keyword and OOPS concepts

14

I think @HIFI_APPS is right because I saw this code :

@SimpleFunction (description = "Calculates the area of Circle. Input should be in same unit.")
  public double AreaOfCircle ( double radius )
  {
return (double) (Math.PI * (radius * radius));
  }
15

i only know three types int,string,float now double where can i learn all

16

yes it worked

17

there are many types of datatypes in java

  1. Primitive datatypes
    Boolean
    char
    byte
    short
    int
    long
    float
    double

  2. Non-primitive datatypes
    String
    objects
    etc..

18

this is proof that @HIFI_APPS is right

19

i remember all this in childhood except short,objects

20

i don't have any idea to mark solution to anyone,both helped me in this if i marked 1 other will be sad so let it be without a mark

21

there difference between float and double size of float is 4 byte = 32 bit and size of double is 8 byte = 64 bit.

22

give the mark to yourself :innocent: :rofl:

1 Like
23

PI is defined as a double in Java (ref) and you don't need to cast the return to double since everything will be promoted to double for the math operations since they involve at least one double.

2 Likes
24

please remember to follow the naming conventions

Taifun

25

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