A student needs to calculate the average of three numbers x, y, and z. Which is the correct Java expression for this calculation?

Write Java expression for:

$\dfrac{|𝑎 + 𝑏|}{\sqrt{a^2 + b^2}}$

Identify the operator that gets the highest precedence while evaluating the given expression:

a + b % c * d - e

1. +
2. %
3. -
4. *

If x = 5 and y = 4, what will be the output of the following code?

x += ++y - x-- + y++;
System.out.println("x = " + x);
System.out.println("y = " + y);