![Example: Method Overloading in
Java
class OverloadExample {
void display(int a) {
System.out.println("Integer: " + a);
}
void display(String a) {
System.out.println("String: " + a);
}
public static void main(String args[]) {
OverloadExample obj = new OverloadExample();
obj.display(10);
obj.display("Java");
}
}](https://image.slidesharecdn.com/polymorphisminjava-250226120925-f12e97bf/85/Basics-of-polymorphism-underlying-hhhhhhh-5-320.jpg)
![Example: Method Overriding in
Java
class Parent {
void show() {
System.out.println("Parent class method");
}
}
class Child extends Parent {
void show() {
System.out.println("Child class method");
}
public static void main(String args[]) {
Parent obj = new Child();
obj.show();
}
}](https://image.slidesharecdn.com/polymorphisminjava-250226120925-f12e97bf/85/Basics-of-polymorphism-underlying-hhhhhhh-7-320.jpg)
Basics of polymorphism underlying hhhhhhh
- 1. Polymorphism in Java Understanding Compile-time and Runtime Polymorphism with Examples
- 2. What is Polymorphism? • Polymorphism allows one interface to be used for different data types or actions. • In Java, it helps in achieving flexibility and reusability of code.
- 3. Types of Polymorphism in Java • 1. Compile-time Polymorphism (Method Overloading) • 2. Runtime Polymorphism (Method Overriding)
- 4. Compile-time Polymorphism (Method Overloading) • • Achieved using method overloading. • • Methods have the same name but different parameters. • • The method to be executed is determined at compile time.
- 5. Example: Method Overloading in Java class OverloadExample { void display(int a) { System.out.println("Integer: " + a); } void display(String a) { System.out.println("String: " + a); } public static void main(String args[]) { OverloadExample obj = new OverloadExample(); obj.display(10); obj.display("Java"); } }
- 6. Runtime Polymorphism (Method Overriding) • • Achieved using method overriding. • • A subclass provides a specific implementation of a method already defined in its parent class. • • The method to be executed is determined at runtime.
- 7. Example: Method Overriding in Java class Parent { void show() { System.out.println("Parent class method"); } } class Child extends Parent { void show() { System.out.println("Child class method"); } public static void main(String args[]) { Parent obj = new Child(); obj.show(); } }
- 8. Key Differences: Overloading vs Overriding • • Overloading happens at compile time, Overriding happens at runtime. • • Overloading is within the same class, Overriding involves inheritance. • • Overloaded methods have different parameters, Overridden methods have the same signature.
- 9. Summary • • Polymorphism allows flexibility and reusability in code. • • Two types: Compile-time (Method Overloading) and Runtime (Method Overriding). • • Helps in writing cleaner and scalable programs.
- 10. Thank You! • Any Questions?