Question

in java

A class called Author is designed as shown in the class diagram. 

Author 

name: String 

email: String 

gender: char 

+Author (name :String, email: String, gender char) 

+getName ():String 

+getEmail() String 

+setEmail (email: String) :void 

+getGender(): char 

+toString ():String 

It contains 

 Three private instance variables: name (String), email (String), and gender (char of either 'm' or 'f), 

 One constructor to initialize the name, email and gender with the given values; public Author (String name, String email, char gender) f......) 

 public getters/setters: getName(), getEmail setEmail and getGender(); (There are no setters for name and gender, as these attributes cannot be changed.) 

 AtoString method that returns "author-name (gender) at email", e.g., "Tan Ah Teck (m) at [email protected]". 

Answer 1

//********* Author.java ****************//

class Author

{

private String name;

private String email;

private boolean gender; //male=false; female=true;

public Author( String name, String email, boolean gender)

{

this.name = new String(name);

this.email = new String(email);

this.gender = gender;

}

public String getName() { return(name); }

public String getEmail() { return(email); }

public boolean getGender() { return(gender); }

public Author(Author author)

{

this.name = new String(author.getName());

this.email = new String(author.getEmail());

this.gender = author.getGender();

}

public void setName( String name) { this.name = new String(name); }

public void setEmail(String email) { this.email = new String(email); }

public void setGenderMale() { this.gender = false; }

public void setGenderFemale() { this.gender = true; }

@Override public String toString()

{

char chGender = (this.gender) ? 'F' : 'M';

return(

new String(

this.name + "(" + chGender + ") at " + this.email

)

);

}

}