ProgramModerate2 marks
Rewrite the following using ternary operator: if(n1 > n2) r = true; else r = false;
Topic: if-else to ternary
Previous-year question practice database
Answer
Exam answer
r = (n1 > n2) ? true : false;
Simpler still, since the condition already yields a boolean: r = (n1 > n2);
Explanation
The ternary form is: variable = (condition) ? value_if_true : value_if_false. The if test becomes the condition, the if branch the first value, the else branch the second. Worth noticing, and worth a sentence in your answer: a relational expression like n1 > n2 ALREADY evaluates to true or false, so the ternary is redundant here and r = (n1 > n2); does the same job. Examiners accept the ternary version, but spotting the redundancy shows you understand what a boolean expression is.
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