Evaluate the following Java expression, if x=3, y=5, and z=10:++z + y - y + z + x++

The expression you provided is not valid in Java. The increment (++) and decrement (--) operators in Java can only be used with a single variable and cannot be used with an expression or constant.

However, if you meant to increment x and z before the expression, and then use them in the expression, it would look like this:

x++;
z++;
int result = z + y - y + z + x;

Given x=3, y=5, and z=10, if we increment x and z before the expression, x becomes 4 and z becomes 11.

Then, the expression z + y - y + z + x becomes 11 + 5 - 5 + 11 + 4, which equals 22.