java backslash

 '\b' -backspace

'\f' -from feed

'\n' -new line

'\r' -carrige return

'\t' -horizontal tab

'\' -single quote

"\" -double quote

'\\' - backslash

char  -single contain [example= "P"]

string -double contain [example= "Programmingkhata"]

void - free{it is do not return anything}

int - it have return any value