Unary Operators

Two types of unary operators:-

1-pre  operator (++i)(--i)
2-post operator(i++)(i--)

  pre means change than use(first you change the value then use it)
  post means use than change(first you use the value then change it which reflects in next usage)

Examples:-

output: 11

 output:9

 output:9

 output:9

in this first it transfer the value of X to Y then it change which reflect in other usage.......

in this first it change the value of X then it transfer into the Y..
take a look of all the examples.......