Inheritance Java Program

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Here are java program to implement the inheritance, the most amazing OOP concept. There are different types of inheritance like single, multilevel, and multiple inheritance.

Single Inheritance

Source Code:


class Animal{
	void eat() {
		System.out.println("eating...");
	}
}
class Dog extends Animal{
	void bark() {
		System.out.println("barking...");
	}
}
public class SingleInheritance {
	
	public static void main(String[] args) {
		Dog d = new Dog();
		d.bark();
		d.eat();
	}
}

Output:

barking...
eating...

Multi-Level Inheritance

Source Code:

class Animals{
	void eat() {
		System.out.println("eating...");
	}
}
class Dogs extends Animals{
	void bark() {
		System.out.println("barking...");
	}
}
class BabyDogs extends Dogs{
	void weep() {
		System.out.println("weeping...");
	}
}
public class MultiLevelInheritance {

	public static void main(String[] args) {
		BabyDogs bd = new BabyDogs();
		bd.weep();
		bd.bark();
		bd.eat();
	}
}

Output:

weeping...
barking...
eating...

Multiple Inheritance

Source Code:

interface Vehicle{
	void wheelerType();
}
interface Color{
	void colorType();
}
class Car implements Vehicle, Color{
	public void wheelerType() {
		System.out.println("It's two wheeler.");
	}
	public void colorType() {
		System.out.println("It's Red color.");
	}
}
public class MultipleInheritance {
	public static void main(String s[]) {
		Car c1 = new Car();
		c1.wheelerType();
		c1.colorType();
	}
}

Output:

It's two wheeler.
It's Red color.

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