How it works...
The toggled() event of Radio Button is connected to the dispFare() function, which will display the price of the selected flight type. In the dispFare() function, you check the state of the radio buttons. Hence, if radioButtonFirstClass is selected, the value 50 is assigned to the fare variable. Similarly, if radioButtonBusinessClass is selected, the value 125 is assigned to the fare variable. Similarly, the value 100 is assigned to the fare variable when radioButtonEconomyClass is selected. Finally, the value in the fare variable is displayed via labelFare.
On executing the previous program, you get a dialog that displays three flight types and prompts the user to select the one that he/she wants to use for travel. On selecting ...
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