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Questions and Exercises: Inheritance (The Java™ Tutorials > Learning the Java Language > Interfaces and Inheritance)
Trail: Learning the Java Language
Lesson: Interfaces and Inheritance
Home Page > Learning the Java Language > Interfaces and Inheritance
Questions and Exercises: Inheritance

Questions

1. Consider the following two classes:
public class ClassA {
    public void methodOne(int i) {
    }
    public void methodTwo(int i) {
    }
    public static void methodThree(int i) {
    }
    public static void methodFour(int i) {
    }
}

public class ClassB extends ClassA {
    public static void methodOne(int i) {
    }
    public void methodTwo(int i) {
    }
    public void methodThree(int i) {
    }
    public static void methodFour(int i) {
    }
}
a. Which method overrides a method in the superclass?
b. Which method hides a method in the superclass?
c. What do the other methods do?

2. Consider the Card, Deck, and DisplayDeck classes you wrote in Questions and Exercises: Classes . What Object methods should each of these classes override?

Exercises

1. Write the implementations for the methods that you answered in question 2.


Check your answers.

Previous page: Summary of Inheritance
Next page: Numbers and Strings
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