Java OOPS ADD Two Numbers

In this tutorials will  teach you how to add two number using OOP concepts. This is an important for developing a java projects.  there are many students who struggling with this area. so that I bring this article for all to clear the doubts.

First You have to Design the Form

After that you have to create the class  Cal.java

public class Cal 
{
    public int num1,num2,tot;  // Create the Variables with Public Access specifier

    public int Add()  // Create the Method
    {
        tot = num1 + num2;
        
        return tot;
    }
}

Paste the Code inside the Add Button

Cal c = new Cal();
c.num1 = Integer.parseInt(txtNum1.getText());
c.num2 = Integer.parseInt(txtNum2.getText()); 
        
txttot.setText(String.valueOf(c.Add()));

i have attached the video link below. which will do this tutorials step by step.