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What is the output of the following program fragment? cout < \) ( 3 ) \( / 4 \) <
Ask by Tyler West. in the United States
Jan 21,2025

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Answer

The program outputs `0.75`.

Solution

Let's analyze the given program fragment step by step: 1. **Understanding the Code**: The code snippet is: ```cpp cout << static_cast(3) / 4 << endl; ``` 2. **Static Cast**: The `static_cast(3)` converts the integer `3` to a double. So, `static_cast(3)` becomes `3.0`. 3. **Division**: Next, we perform the division: \[ \frac{3.0}{4} = 0.75 \] 4. **Output**: The result of the division, `0.75`, is then sent to the output stream using `cout`. 5. **Final Output**: The program will output `0.75`. Thus, the correct answer is: **0.75**

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The output of the given program fragment is 0.75. This is because the expression `static_cast(3)` converts the integer 3 to a double (3.0), and then it is divided by the integer 4. Since one of the operands is a double, the result of the division is also a double, producing 0.75. To avoid common mistakes in such scenarios, remember that integer division truncates any decimal places. By using `static_cast` to convert at least one operand to a double, you ensure that you get a floating-point result instead of an integer. Always consider the data types involved in your calculations!

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