Spiderman

hi friends, can u explain me why v can't create the folder on desktop or other inside the drive with name of "CON"? Thank in advance.....

anyone can tel me that why do we refresh? like right click and click on refresh. or use F5 button which is use 4 refresh.

plz tel me in both we learn same language. what s the main diffrence bet Computer science and IT?

in java language we use System.out.println. then what is System , out and println in that