Expression Evaluation in Java

What is the value of y after evaluating the expression given below?

y+= ++y + y-- + --y; when int y=8

x1= ++x – x++ + --x

Give the output of the following expression:

a+= a++ + ++a + --a + a-- ; when a = 7

Write the Java expressions for:

public static void main (String [] args){
int a = 5;
a++;
System.out.println(a);
a -= (a--) - (--a);
System.out.println(a);} 

int x = 4;
x += (x++) + (++x) + x;

Write an expression in Java for:
z = (5x^3 + 2y)/(x + y)

Given: int x = 5;

Expression: x++ * 2 + 3 * --x;

(h) Evaluate the following expression if the value of x=2, y=3 and z=1.

  v=x + --z + y++ + y

\[ \frac{\sqrt{3x + x^2}}{a + b} \]