Expressions and Arithmetic Operators
Read this chapter, which discusses arithmetic operations in greater detail along with solving expressions with mixed data types.
11. Mixed Floating Point and Integer Expressions
Answer:
You look at the operands of the operator.Mixed Floating Point and Integer Expressions
But what if one operand is an integer and the other is a floating point? The rule is:
For example, the following are integer operations (assume that a and b are int variables):
|
12 * b
|
a - 2
|
56%a
|
Each operation in the following expressions is a floating point operation (assume that a and b are int variables, and that x and y are floating point
variables):
|
x * b
|
(a - 2.0)
|
56*y
|
In complicated expressions, an operand of a particular operator might be a subexpression. But the rule still applies: if one or both operands is a floating point type then the operation is floating point. In the following, each / operation
is floating point:
|
(12.0 * 31) / 12
|
(a - 2.0) / b
|
56*x/3
|
In that last example, the 56*x is a floating point subexpression that becomes an operand for the division operator. (Because * and / have equal precedence, the evaluation
is done from left to right.)
Question 11:
What type (integer or floating point) of operator is the / in the following:
(12 + 0.0) / 7