What does the operator *= do?

What does the operator *= do?

• A. Adds a value to a variable and assigns the result.
• B. Subtracts a value from a variable and assigns the result.
• C. Multiplies a variable by a value and assigns the result.
• D. Divides a variable by a value and assigns the result.

Answer: (C)

The operator is a compound assignment that performs multiplication on the variable’s current value and then stores the result back into that variable. It’s equivalent to writing the variable a second time with a multiplication operation: variable = variable * value. For example, if a starts at 6 and you do a *= 4, a becomes 24. This pattern follows other similar operators: += adds and assigns, -= subtracts and assigns, and /= divides and assigns. Each one updates the variable in place by applying the specified operation with the right-hand value.

The operator is a compound assignment that performs multiplication on the variable’s current value and then stores the result back into that variable. It’s equivalent to writing the variable a second time with a multiplication operation: variable = variable * value.

For example, if a starts at 6 and you do a *= 4, a becomes 24.

This pattern follows other similar operators: += adds and assigns, -= subtracts and assigns, and /= divides and assigns. Each one updates the variable in place by applying the specified operation with the right-hand value.