++x is called preincrement while x++ is called postincrement.
int x = 5, y = 5;System.out.println(++x); // outputs 6System.out.println(x); // outputs 6System.out.println(y++); // outputs 5System.out.println(y); // outputs 6
yes
++x increments the value of x and then returns xx++ returns the value of x and then increments
example:
x=0;a=++x;b=x++;
after the code is run both a and b will be 1 but x will be 2.
These are known as postfix and prefix operators. Both will add 1 to the variable but there is a difference in the result of the statement.
int x = 0;int y = 0;y = ++x; // result: y=1, x=1int x = 0;int y = 0;y = x++; // result: y=0, x=1