Error when trying to implement Abstract data type class

Question

I need to implement a TAD in repl.it, but gives the following error:

Error: Could not find or load main class Main Exit status 1

import java.lang.Math;

class Ponto {

  public int x;

  public int y;

  public Ponto(int x, int y) {
    this.x = x;
    this.y = y;

  }

  public boolean igual(Ponto p) {
    return this.x == p.x && this.y == p.y;

  }

  public String texto() {
    return (this.x + " " + this.y);
  }

  public double distancia(Ponto p) {
    double d1 = this.x - p.x;
    double d2 = this.y - p.y;
    return Math.sqrt((d1*d1)+(d2*d2));
  }

  public void translada(int dx, int dy) {
    this.x = this.x+dx;
    this.y = this.y+dy;

  }

  public static void main(String[] args) {
   Ponto ponto = new Ponto(2, 3);
   String texto = ponto.texto();
   System.out.println(texto); // Imprime (2, 3);

  }
}