Answer:
Step-by-step explanation:
The following Java code creates the MonetaryCoin class that extends the Coin class. It then creates three variables representing the MonetaryCoin object which are its value, weight, and coinYear. These are all passed as arguments to the constructor and saved as instance variables.
public class MonetaryCoin extends Coin {
int value;
float weight;
int coinYear;
public void MonetaryCoin(int value, float weight, int coinYear) {
this.value = value;
this.weight = weight;
this.coinYear = coinYear;
}
}