Write a simple java GUI programme that will prompt a user to enter two numbers in a JoptionPane. The code should test and verify that the values entered is a number, if not, it should flag a message prompting the use to enter a number. The values should be used to calculate the sum. The output should be displayed on a Message dialog.

Write a simple java GUI programme that will prompt a user to enter two numbers in a JoptionPane. The code should test and verify that the values entered is a number, if not, it should flag a message prompting the use to enter a number. The values should be used to calculate the sum. The output should be displayed on a Message dialog.

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter5: Looping

Section: Chapter Questions

Problem 12E

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