フリー問題

問題文

An int is divided by another int and the quotient is stored in a double. Why does the quotient show no fractional part?

選択肢

1. The operator itself evaluates using decimal rules, and the conversion to the wider type consequently occurs at the operands in this expression.
2. The operator itself evaluates using decimal rules, and the conversion to the wider type consequently occurs at the assignment in this expression.
3. The operator itself evaluates using truncating rules, and the conversion to the wider type consequently occurs at the operands in this expression.
4. The operator itself evaluates using truncating rules, and the conversion to the wider type consequently occurs at the assignment in this expression.