I need help converting this Java into C++.

This is wayyy too confusing for me to convert. Please help! The keyboard input is killing me. I don't even know where to include the scanf.

try

{ //TODO

FileInputStream fis = new FileInputStream("<>"); Scanner sc = new Scanner(fis);

while(sc.hasNextLine())

{ try

{

BigDecimal b = new BigDecimal(sc.nextLine());

numberList.add(b);

}

catch(BigDecimalException bde)

{

System.out.println(bde.getMessage());

}

}