Using swing, create a simple java UI that calculate the price of an object based

Question

Using swing, create a simple java UI that calculate the price of an object based on a number of factors. Include a drop down menu with different choices, a check box which will initialize a box for input (i.e. Delivery? - which will enable a box to specify how much it will cost). You must also include more than one pane.

Finally, have a box at the bottom called Calculate and when pressed, outputs to a corresponding text field the total.

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The bare minimum is fine here. Thank you.

Explanation / Answer

/* Java Interface example. This Java Interface example describes how interface is defined and being used in Java language. Syntax of defining java interface is, interface { //members and methods() } */ //declare an interface interface IntExample{ /* Syntax to declare method in java interface is, methodName(); IMPORTANT : Methods declared in the interface are implicitly public and abstract. */ public void sayHello(); } } /* Classes are extended while interfaces are implemented. To implement an interface use implements keyword. IMPORTANT : A class can extend only one other class, while it can implement n number of interfaces. */ public class JavaInterfaceExample implements IntExample{ /* We have to define the method declared in implemented interface, or else we have to declare the implementing class as abstract class. */ public void sayHello(){ System.out.println("Hello Visitor !"); } public static void main(String args[]){ //create object of the class JavaInterfaceExample javaInterfaceExample = new JavaInterfaceExample(); //invoke sayHello(), declared in IntExample interface. javaInterfaceExample.sayHello(); } } /* OUTPUT of the above given Java Interface example would be : Hello Visitor ! */

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