[Solved] How to Implement class Alkio? [closed]

Why do you expect it to print (1,2,10)?

1. You re-set the values to 2,5, 12 (eka.setAlkio(2, 5, 12);). (although, as commented to the question by @flesk, you don’t actually set them…)

2. you didn’t override the toString method as you should have:

   public String toString(){
       return "("+rivi+","+sarake+","+arvo+")";
   }
   

3. In your constructor, you don’t set the class members to the given parameters, because you hide them in the method, the constructor should be:

   public Alkio(int rivi, int sarake, int arvo){
       this.rivi= rivi;
       this.sarake=sarake;
       this.arvo=arvo;
   }