Question

What does the following if statement do?

if (num1 == Math.abs(num1))

Answer 1

The if statement checks if num1 is non-negative by comparing it to its absolute value using Math.abs(), and executes the code inside the if block if true.

Step-by-step explanation:

The if statement in question is used to check whether the variable num1 is non-negative. The Math.abs() function returns the absolute value of a number, which is always non-negative. If num1 is equal to its absolute value, it means that num1 must itself be either zero or positive. Therefore, the condition of the if statement evaluates to true if num1 is non-negative, and the code inside the if block will execute.

Answer 2

This statement checks if num1 is equal to the absolute value of num1

For instance,

num1 = 4 and the absolute value of num1 = 4. This would run the code inside the if statement but if num1 = -1 the absolute value of num1 = 1 and the if stamtent would be skipped because -1 does not equal 1