Vijairam Ganeshmoorthy

Look at the code ....

int i = 1 ; do { i++; System.out.println(); }while(false); }
I get the outcome as 2
int i = 1 ; do { System.out.println(i++); }while(false); }
I get the outcome as 1 .

How is this possible ?  what's the difference between the two ?

Why does java ide  give a warning when I don't use close while using the scanner class ? Does it have any benefit ?

I am interested in learning go , but what are the prerequisites to learn Go . Is it similar to learning other conventional languages .

This is the first time ever hearing about the language Go and what is it used for ?