Answer the given question with a proper explanation and step-by-step solution. Can someone tell me why I'm getting Java error cannot invoke add(int) on array type int on the bold line? I need this method to calculate median based on file that will be input in a different method. Do no change to a main method as I need to reserve that to only have a contructor. public int Problem7(File file) throws FileNotFoundException { int[] listInt; try { Scanner scanner = new Scanner(file); while (scanner.hasNextLine()) { String value = scanner.nextLine(); listInt.add(Integer.parseInt(value)); System.out.println(value); } scanner.close(); } catch (Exception ex) { ex.printStackTrace(); } Arrays.sort(listInt); int middle = listInt.length/2; int median = 0; if (listInt.length%2 == 1) median = listInt[middle]; else median = (listInt[middle-1] + listInt[middle]) / 2; return median; }}

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Answer the given question with a proper explanation and step-by-step solution.

Can someone tell me why I'm getting Java error cannot invoke add(int) on array type int on the bold line? I need this method to calculate median based on file that will be input in a different method. Do no change to a main method as I need to reserve that to only have a contructor.

public int Problem7(File file) throws FileNotFoundException {

int[] listInt;

try {

Scanner scanner = new Scanner(file);

while (scanner.hasNextLine()) {

String value = scanner.nextLine();

listInt.add(Integer.parseInt(value));

System.out.println(value);

}

scanner.close();

} catch (Exception ex) {

ex.printStackTrace();

}

Arrays.sort(listInt);

int middle = listInt.length/2;

int median = 0;

if (listInt.length%2 == 1)

median = listInt[middle];

else

median = (listInt[middle-1] + listInt[middle]) / 2;

return median;

}}

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