import ballerina/io;
@final float PI = 3.14159;function main (string[] args) {
float circumference = 10.4;
float diameter = circumference / PI;
io:println("Diameter of the circle: " + diameter);
}
ConstantsConstants are declared just like variables, but with the @final annotation. Constants can be of value types boolean, int, float or string. You cannot use the value type blob when you declare a constant in Ballerina. |
|
import ballerina/io;
|
|
@final float PI = 3.14159;
|
The final declaration can be specified only as a top-level construct in Ballerina. |
function main (string[] args) {
float circumference = 10.4;
float diameter = circumference / PI;
io:println("Diameter of the circle: " + diameter);
}
|
|
$ ballerina run constants.bal
Diameter of the circle: 3.310425612508316
|
|