Question

House Class Specification The House class represents a house. A house has an address (address instance variable), a year it was built (built instance variable), and the names of residents of the house (residents instance variable). The declaration of each variable follows. private String address; private int built; private StringBuffer residents; The class methods are: 1. Constructor - Takes a string (representing the address) and an integer (representing the year the house was built) as parameters, and initializes the corresponding instance variables, accordingly. It creates a StringBuffer object and assigns it to the residents instance variable. You can assume the parameters are valid (e.g., address is not null) 2. Copy Constructor - Creates a deep copy. addResident - Appends the provided string parameter to the residents Stringbuffer if the string parameter is not null. Do not add any delimeter (e.g., a comma) as part of the append process. The method always returns a reference to the current object and no exception will be thrown by this method. 4. getAddress - get method for address. getBuilt - get method for built. 6. toString() - We have provided this method; do not modify it, otherwise you might not pass release / secret tests.

Answer 1

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 public class House { private String address; private int built; private StringBuffer residents; House(String address, int built){ this.address = address; this.built = built; this.residents = new StringBuffer("Address: "+ address+ "\n Year Built:"+ built); } House(House h1){ this.address = h1.address; this.built = h1.built; this.residents = new StringBuffer("Address: "+ h1.address+ "\n Year Built:"+ h1.built); } void addResident(String address, int built) { this.resident.append("Address: "+ address+ "\n Year Built:"+ built); } String getAddress(){ return this.address; } int getBuilt(){ return this.built; } String toString(); }

public class House { private String address; private int built; private StringBuffer residents; House(String address, int built) { this.address = address; this.built = built; this.residents = new StringBuffer ("Address: "+ address+ "\n Year Built:"+ built); 11 - House (House h1) { this.address = h1.address; this.built = h1.built; this.residents = new StringBuffer ("Address: "+ h1.address+ "\n Year Built:"+ h1. built): void addResident(String address, int built) { this.resident.append("Address: "+ address+ "\n Year Built:"+ built); String getAddress() { return this.address; int getBuilt(){ return this.built; String toString(); }