Method Overriding: Animal Sounds

Learning Objective: Redefine parent method in child class with @Override

Create Animal class representing animals and Dog/Cat classes inheriting from it. Override parent's speak() method in child classes to output different sounds.

Input

None (fixed output)

Output

Dog says: Woof!
Cat says: Meow!
```java

## Examples

### Example 1: Basic overriding
Input:
```java
(none)
```java
Output:
```java
Dog says: Woof!
Cat says: Meow!
```java

### How Overriding Works
- Define speak() method in parent class Animal
- Redefine speak() with @Override in child class Dog
- Similarly redefine in child class Cat
- When calling speak() on each instance, the respective child class implementation executes.