Classroom.java

class Classroom {

    public static void main(String[] args){
        
        // references to a new instance of the Wilder class
        Wilder joe = new Wilder("Joe", false);
        Wilder bill = new Wilder("Bill", true);
        
        
        System.out.println(joe.whoAmI());
        System.out.println(bill.whoAmI());
        
    }
 }
    

Wilder.java

class Wilder {
    
    
    // attributes
    private String firstname;
    private boolean aware;
    
    // constructeurs    
    public Wilder(String firstname, boolean aware){
        this.firstname = firstname;
        this.aware = aware;

    }
    // getters
    public String getFirstname(){
        return this.firstname;    
    }

     public boolean isAware(){
        return this.aware;        
    }
    
    // setters
    public void setFirstname(String firstname){
        this.firstname = firstname;
    }
    
    public void setAware(boolean aware){
        this.aware = aware;
    }

    // method
    public String whoAmI(){
       if(this.aware==true){
            return "Je m'appelle " + this.getFirstname() + " et je suis aware!";
       } else {
            return " Je m'appelle " + this.getFirstname() + " et je ne suis pas aware!";        
        }
    }
}