KwickClips Java · 41 sec · free
Why does nothing happen when I click the button?
Short answer. You have not written code in its ActionPerformed method.
What type does getText() return?
A String, so you must parse it to calculate.
Remember
| getText gives a String |
| parse, compute, setText |
You click Calculate, and nothing happens. Why? Get text reads a String. Parse double makes it a number. Interest is principal times five times two, by hundred. Set text shows it. Get text gives a String. Parse, compute, then set text.
This clip is from the full lesson: GUI Applications in NetBeans: JFrame, JPanel, JTable and JOptionPane — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 11 Information Technology (802), CBSE Class 11 Information Technology (802)
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