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Questions and Answers
What does the increment operator ++ do in C++?
What does the increment operator ++ do in C++?
- It divides a variable by 2
- It adds one to a variable (correct)
- It subtracts one from a variable
- It multiplies a variable by 2
Which of the following is equivalent to the expression 'val++'?
Which of the following is equivalent to the expression 'val++'?
- val = val - 1 (correct)
- val--
- val = val * 2
- val = val + 1
In prefix mode (++val), what value does the operator return?
In prefix mode (++val), what value does the operator return?
- Value before incrementing
- Value after incrementing (correct)
- Value after decrementing
- Value before decrementing
What does the decrement operator -- do in C++?
What does the decrement operator -- do in C++?
In postfix mode (val++), when does the operator perform the increment?
In postfix mode (val++), when does the operator perform the increment?
Which of the following is equivalent to the expression '++val'?
Which of the following is equivalent to the expression '++val'?
What is the key difference between prefix and postfix modes of ++ and -- operators?
What is the key difference between prefix and postfix modes of ++ and -- operators?
What happens if you use '--val' in a C++ statement?
What happens if you use '--val' in a C++ statement?
What does the increment operator '++' do in C++?
What does the increment operator '++' do in C++?
How is 'val++;' interpreted in C++?
How is 'val++;' interpreted in C++?
In postfix mode (val++), when is the increment operation performed?
In postfix mode (val++), when is the increment operation performed?
What is the result of '--val;' in C++?
What is the result of '--val;' in C++?
When using '++val;' in C++, which value does the operator return?
When using '++val;' in C++, which value does the operator return?
How are prefix and postfix modes of ++ and -- operators different in C++?
How are prefix and postfix modes of ++ and -- operators different in C++?
What is the equivalent of 'val = val - 1;' in C++?
What is the equivalent of 'val = val - 1;' in C++?
