The following method, readin, reads in a file and process a gradebook file. The

Question

The following method, readin, reads in a file and process a gradebook file. The file contains rows of the following a string indicating the name of the student, the exam score (a decimal value), and the homework score (an integer). For example, a sample file may look like the following Paul 92.3 12 Rick 0.5 2 Christine 100.4 90 Complete the code by selecting the correct choices at the blanks. Put your answer directly on the blanks public void zeadin (String filename) File file new File (filename) Scanner rin new Scanner (file) while (rin. String name - rin. double exam rin. int hw rin. //furthez processing, not part of this problem B. hasNext0 C. has0 D. File A. NullPointerException E. nextlnt0 F. nextDouble G. next J. IOException throws L. evoke H. takelntO toss

Explanation / Answer

// Scanner throws FileNotFoundException which is subclass of IOException

public void readin(String filename) throws IOException {

File file = new File(filename);

Scanner rin = new Scanner(file);

// hasNext() checks if more input available

while(rin.hasNext()) {

// next() provides next string

String name = rin.next();

// nextDouble() provides next double

double exam = rin.nextDouble();

// nextInt() provides next integer

int hw = rin.nextInt();

}

}

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