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Written by slim ouertani
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Friday, 05 June 2009 18:24 |
public interface IPerson {
int getAge();
}
public class Person implements IPerson {
int age;
public int getAge() {
System.out.println("I 'am Person");
return age;
}
}
public class Engineer extends Person {
@Override
public int getAge() {
System.out.println("I 'am Engineer");
return age;
}
}
public class JavaEngineer extends Engineer {
@Override
public int getAge() {
System.out.println("I 'am JavaEngineer");
return age;
}
}
public class Main {
public static void main(String[] args) {
Person person1 = new Engineer();
person1.getAge();
IPerson person2 = new JavaEngineer();
person2 = person1;
person2.getAge();
}
} | | Guess console output |
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