int [][] matrix = new int [9][9]; Scanner sc = new Scanner(System.in); System.ou

Question

int [][] matrix = new int [9][9];
  
Scanner sc = new Scanner(System.in);
System.out.print("Enter file name ");
String fileName = sc.next();
Scanner input = new Scanner (fileName);
  
while (input.hasNext()){
for (int col = 0; col < 9 ; col ++){
for (int row = 0; row < 9 ; col ++){
sudoku [col][row] = input.nextInt();
System.out.println(matrix [col][row]);
}
}
}

  
  
  
}

i got error this

Exception in thread "main" java.util.InputMismatchException

at java.util.Scanner.throwFor(Scanner.java:864)

at java.util.Scanner.next(Scanner.java:1485)

at java.util.Scanner.nextInt(Scanner.java:2117)

at java.util.Scanner.nextInt(Scanner.java:2076)

at Sudoku.main(matrix.java:30)

----jGRASP wedge2: exit code for process is 1.

----jGRASP: operation complete.

Explanation / Answer

import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.util.Scanner; public class Mat { public static void main(String[] args) throws FileNotFoundException { //encounters filenotfoundexception int [][] matrix = new int [9][9]; Scanner sc = new Scanner(System.in); System.out.print("Enter file name "); String filename = "F:\pro\Intellij\src\" + sc.next(); //getting filename from user and appending to it absolute path FileReader fileReader = new FileReader(filename); BufferedReader bufferedReader = new BufferedReader(fileReader); Scanner input = new Scanner (bufferedReader); while (input.hasNext()){ for (int col = 0; col < 9 ; col ++){ for (int row = 0; row < 9 ; row ++){ matrix[col][row] = input.nextInt(); System.out.println(matrix[col][row]); } } } } }

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