Swan Lake Beta3 is here. 
import ballerina/io;

public function main() {
    float x = 1.0;

    int n = 5;

    // No implicit conversions between integers and floating point values are allowed.
    // You can use `<T>` for explicit conversions.
    float y = x + <float>n;

    io:println(y);
}

Floating Point Numbers

The float type is IEEE 64-bit binary floating point (same as double in Java) and supports the same arithmetic operators as int.

 
import ballerina/io;

public function main() {
    float x = 1.0;

    int n = 5;

    float y = x + <float>n;

No implicit conversions between integers and floating point values are allowed. You can use <T> for explicit conversions.

    io:println(y);
}

bal run floating_point_numbers.bal 
6.0

import ballerina/io;

public function main() {
    float x = 1.0;

    int n = 5;

    // No implicit conversions between integers and floating point values are allowed.
    // You can use `<T>` for explicit conversions.
    float y = x + <float>n;

    io:println(y);
}

Floating Point Numbers

The float type is IEEE 64-bit binary floating point (same as double in Java) and supports the same arithmetic operators as int.

 
import ballerina/io;

public function main() {
    float x = 1.0;

    int n = 5;

    float y = x + <float>n;

No implicit conversions between integers and floating point values are allowed. You can use <T> for explicit conversions.

    io:println(y);
}

bal run floating_point_numbers.bal 
6.0
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