Consider the following Java class. Recall that x instanceof C tells you whether the dynamic type of x is C or a subtype of C.
class Coin {
private double value;
private double weight;
public void setValue(final double value) { this. value = value; }
public double getValue() { return value; }
public double getWeight() { return weight; }
public Coin(final double value, final double weight) {
this. value = value;
this. weight = weight;
}
public boolean equals(final Object that) {
return (that instanceof Coin) &&
(this. weight == ((Coin) that).weight);
}
}
a) TRUE or FALSE: The equals method does not care about the weight of the coin because coins are compared based on their face value.
b) Given the above Coin class, what is the output of the following code?
final Coin n1 = new Coin(0.05, 5.0);
final Coin n2 = new Coin(0.05, 5.1);
System. out. println(n1.equals(n2) + " " + (n1 == n2));
// answer here ->
n2.setWeight(5.0);
System. out. println(n1.equals(n2) + " " + (n1 == n2)); ));