Insert the missing code in the following code fragment. This fragment is intended to read an input file named dataIn.txt and write to an output file named dataOut.txt.
Public static void main(String[] args) throws FileNotFoundException
{
String inputFileName = "dataIn.txt";
String outputFileName = "dataOut.txt";
File inputFile = _________________;
Scanner in = new Scanner(inputFile)
) . .
}
A) new File(inputFileName)
B) new File(outputFileName)
C) new File(inputFile)
D) new File(System.in)

Question

Quizplus · Accepted Answer

The missing code should create a File object with the name of the input file (dataIn.txt). The correct way to do this is by using the File constructor with the inputFileName variable as its argument, like this: "File inputFile = new File(inputFileName);". Option A correctly implements this. Option B creates a File object with the name of the output file instead of the input file. Option C tries to create a File object with an already existing inputFile variable, which is not defined in this code fragment. Option D creates a File object to read from the console (standard input), which is not what this code fragment is intended to do.

Insert the Missing Code in the Following Code Fragment