Question

Assuming total is a defined integer type what is the value of total after the following statement is executed in Java? total = -1 + 5 * 2 / 3;

Answer 1

In Java, arithmetic operations follow the order of operations, commonly known as PEMDAS/BODMAS (Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).

Let's break down the expression:

5×2 equals 10.

10÷3 equals approximately 3.3333.

Finally,

−1+3.3333 equals approximately 2.3333.

So, after the statement is executed, the value of total would be approximately

2.3333...

Answer 2

The value of 'total' after the execution of the statement in Java is 2, by following the arithmetic order of operations where multiplication and division are performed prior to addition and subtraction, with integer division truncating decimals.

Step-by-step explanation:

The value of total after executing the statement total = -1 + 5 * 2 / 3 in Java can be determined by following the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction). In Java, like in most programming languages, multiplication and division are performed before addition and subtraction, and operations are performed from left to right when the operators are of the same precedence.

First, the multiplication part of the expression is evaluated:

5 * 2 = 10

Then the result is divided by 3, which is an integer division in this context, as total is defined as an integer type. The division yields:

10 / 3 = 3 (since integer division truncates the decimal part)

Finally, we add -1 to the result of the division:

-1 + 3 = 2

Therefore, the value of total after the execution of the statement is 2.