Question:

Consider the following code snippet:

int x = 5;
int y = 3;
int z = 2;
int result = x + y * z - x / z;
System.out.println(result);

What value will be printed to the console? Explain how the expression is evaluated step-by-step.

Answer:

The value that will be printed to the console is 13.

Explanation:

The expression x + y * z - x / z is evaluated according to the operator precedence rules in Java, where multiplication and division take precedence over addition and subtraction.

Step 1: Evaluate y * z Since both y and z are integers, the multiplication operator * performs integer multiplication. The result of y * z is 3 * 2, which equals 6.

Step 2: Evaluate x / z Similar to the previous step, the division operator / performs integer division. The result of x / z is 5 / 2, which evaluates to 2 (integer division discards the fractional part).

Step 3: Evaluate x + (y * z) - (x / z) Substituting the evaluated values from steps 1 and 2, we have 5 + 6 - 2.

Step 4: Perform addition and subtraction The addition and subtraction operators have left-to-right associativity, so we evaluate the expression left to right.

• 5 + 6 equals 11.
• 11 - 2 equals 9.

Therefore, the value stored in the result variable will be 9. Finally, System.out.println(result) prints 9 to the console.