Problem

Write a Java program PersonalGreeting, that asks a series of questions and returns a response.
For all input and output use JOptionPane to help review the first chapter's material.

Your program should do the following:

• prompt the user for their name
• prompt the user for their age
• output a greeting message that displays both name and age gathered from the input

This program will cover the following topics:

• input and output using JOptionPane
• Commnets
• String
• introduction to ints

Example: If a user inputs "Elmo" for their name and "10" for their age, then the result would look something like "Welcome to COMP 1010 Elmo, you are 10 years old today."

Mid-term Review

Solution

Start by importing the swing java package. We need this to make calls to the JOptionPane class.

 import javax.swing.*;

Define your variables, we will need a String for your name and an int for age.

//local variables
String name;
int age;

Next, start by capturing the user input using JOptionPane.showInputDialog. We will need to use Integer.parseInt to cast the string result to an integer for the user's age.

//input
name = JOptionPane.showInputDialog("Please enter your name") ;
age = Integer.parseInt(JOptionPane.showInputDialog("Please enter your age"));

Now output your message using JOptionPage.showMessageDialog. Make sure first parameter is null. Don't forget to use the + operator when appending strings (sometimes referred to as concatenation).

//output
JOptionPane.showMessageDialog(null, "Welcome to COMP1010 "  + name + ", you are " + age + " years old today.");

Code

Solution Code

import javax.swing.*;

public class  PersonalGreeting
{

	public static void main(String[] args)
	{
		//local variables
		String name;
		int age;

		//input
		name = JOptionPane.showInputDialog("Please enter your name") ;
		age = Integer.parseInt(JOptionPane.showInputDialog("Please enter your age"));

		//output
		JOptionPane.showMessageDialog(null, "Welcome to COMP1010 "  + name + ", you are " + age + " years old today.");
	}

}