In programming, different operators can be used to perform different types of operations. Some operators require that their operands must be integers, that is, they can only be used to manipulate values of integer type. This operator is called an integer operator.
Common operators that require integer operands include addition (+), subtraction (-), multiplication (*), division (/) and modulus (%). These operators require that their operands must be integers, because the operational characteristics of integers, such as divisibility and remainder, will be involved in the operation.
For example, in C++ language, if we try to use floating-point numbers (such as 3. 14) as operands of the division operator, the compiler will give an error prompt. This is because in C++, the division operator requires that its operand must be an integer. If floating-point numbers are used as divisors, it will lead to type mismatch errors.
In some programming languages, such as Python, integers can be automatically converted into floating-point numbers for operation, but in these languages, if integer division is needed, operands must also be integers. For example, in Python, if we try to use floating-point numbers as operands of the division operator, Python will convert both operands into integers and then divide them by integers.
It should be noted that different programming languages may have different type conversion rules and operator behaviors. Therefore, when using a specific programming language, it is best to consult the documentation or specifications of that language to learn more about operators and type conversion.
To sum up, common operators such as addition, subtraction, multiplication, division and modulo all require that their operands must be integers. This is because these operations involve the characteristics and behaviors of integers. If you try to use non-integer values as operands, it will lead to the wrong type or unexpected results. Therefore, programmers should pay attention to the type requirements of operators to ensure the correctness and expected behavior of the program.