In Java,operator precedence, increment and decrement, why isn't the first println statement executed?

class Example{
    public static void main(String args[]){
        int x=99;
        if(x++==x){
            System.out.println("x++==x : "+x); //Why this code line is not run?
        }
        if(++x==x ){
            System.out.println("++x==x : "+x); 
        }
    }
}

Why isn’t the first println statement executed?

>Solution :

The operands of an expression are evaluated left to right.

In the expression x++ == x, first x++ is evaluated. It increments x by 1, but returns the original value of x. So x++ returns 99.

Then x is evaluated, which returns 100 (since it was incremented by x++).

Since 99 is not equal to 100, this condition evaluates to false.

If you change the expression to x==x++, you’ll get true.