Program to add, subtract, multiply and divide two numbers using inputdialogbox

Follow the steps to create GUI:

Addition using Input Dialog Box

Step-1: Drag and drop four radio buttons for Add, Subtract, Multiply and Divide.

Step-2: Change the variable name of Add Radio Button to AddRadioButton.

Step-3: Double Click on Add Radio Button.

Step-4: Write the following code:


 private void AddRadioButtonActionPerformed(java.awt.event.ActionEvent evt) {                                               
        double fn=Double.parseDouble(JOptionPane.showInputDialog("Enter First Number"));
        double sn=Double.parseDouble(JOptionPane.showInputDialog("Enter Second Number"));
        double sum=fn+sn;
        JOptionPane.showMessageDialog(null, sum);
    }     

Similarly for other operations like Subtraction, Multiplication, and Division.