Class

In object-oriented programming (OOP), a class is a template that defines the structure and behavior of objects. A class is a logical entity that encapsulates its attributes (data members) and methods (functions).

Class sample code

package in.ihelpyou;

public class Calc {

	public int a, b;

	public int addition() {
		return a + b;
	}

	public int subtraction() {
		return a - b;
	}

	public static void main(String[] args) {
		
		Calc obj = new Calc();

		obj.a = 10;
		obj.b = 20;

		int c = obj.addition();
		
		System.out.println("Sum: " + c);
		
	}

}