Q: If x is 6 and y is 2, what is the value of the expression x %= y using the compound assignment operator in Java?  

In Java, the expression x %= y is a compound assignment operator, which calculates the remainder of the division of x by y and assigns the result back to x. It is equivalent to the expression x = x % y.

If x is initially some numeric value and y is another numeric value, the result of the expression x %= y would be:

x = x % y;

Here's an example in Java:

public class CompoundAssignmentExample {
    public static void main(String[] args) {
        // Declare variables
        int x = 6;
        int y = 2;

        // Compound assignment
        x %= y;

        // Display the result
        System.out.println("The value of x after x %= y is: " + x);
    }
}

In this example, if x is initially 6 and y is 2, after the operation, the value of x will be 0 (the remainder of 6 divided by 2).