[Go] Creating a Point class with methods.

package main

import (
    "log"
)

type Point struct {
    x float64
    y float64
}

func NewPoint(x float64, y float64) *Point {
    p := new(Point)

p.SetX(x)
    p.SetY(y)

    return p
}

// The getter of x
func (p *Point) X() float64 {
    return p.x
}

// The getter of y
func (p *Point) Y() float64 {
    return p.y
}

// The setter of x
func (p *Point) SetX(x float64) {
    p.x = x
}

// The setter of y
func (p *Point) SetY(y float64) {
    p.y = y
}

func main() {
    p := NewPoint(0, 0)

    if !(p.X() == 0) {
        log.Fatal("Wrong value")
    }

    if !(p.Y() == 0) {
        log.Fatal("Wrong value")
    }

    p.SetX(3)
    p.SetY(4)

    if !(p.X() == 3.0) {
        log.Fatal("Wrong value")
    }

    if !(p.Y() == 4.0) {
        log.Fatal("Wrong value")
    }
}