class Main {
public static void main(String[] args) {
// Een normaal, correct object
User john = new SpecialUser("John");
System.out.println(john);
john.setName(" RUDY ");
System.out.println(john);
}
}
class User {
private String name;
public User(String name) {
this.name = this.normalizeName(name);
}
public void setName(String name) {
this.name = this.normalizeName(name);
}
private String normalizeName(String name) {
return name.trim();
}
@Override
public String toString() {
return this.name;
}
}
class SpecialUser extends User {
public SpecialUser(String name) {
super(name);
}
public void setName(String name) {
// setter wordt overschreven,
// initiele object blijft wel correct
}
}
