ProgramModerate2 marks
Rewrite the following using ternary operator: if(bill > 10000) discount = bill * 10.0 / 100; else discount = bill * 5.0 / 100;
Topic: if-else to ternary
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Answer
Exam answer
discount = (bill > 10000) ? bill * 10.0 / 100 : bill * 5.0 / 100;
Explanation
The ternary form is: variable = (condition) ? value_if_true : value_if_false. The if test becomes the condition, the if branch supplies the value before the colon, and the else branch the value after it. Keep 10.0 and 5.0 exactly as written. Changing them to 10 and 5 would make bill * 10 / 100 an integer division and quietly lose the fractional part of the discount — a silent error the compiler would never report.
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