Unhandled exception: FileNotFoundException
bufferedreader, java
Solution
Change the way your main method throws `IOException`. Since these operations may cause either `FileNotFoundException` or `IOException`.
public static void main(String[] args) throws FileNotFoundException {
}
Or add a `try-catch` block
try {
FileInputStream fstream = new FileInputStream("prova.txt");
String strLine = br.readLine();
} catch (IOException e) {
e.printStackTrace();
// handle exception correctly.
}
After all these thing make sure that file is exist.
Problem
I have some problems reading file in java: my file is for example: ``` 3,4 2 6 4 1 7 3 8 9 ``` where first line 3 and 4 are the lenght of array A and B and then the element of each array. I made this ``` import java.io.*; import java.util.Arrays; public class Progetto { public static void main(String args[]) { // Open the file that is the first // command line parameter FileInputStream fstream = new FileInputStream("prova.txt"); BufferedReader br = new BufferedReader(new InputStreamReader(fstream)); String strLine = br.readLine(); // step 1 if (strLine != null) { String[] delims = strLine.split(","); // step 2 // step 3 int[] a = new int[Integer.parseInt(delims[0])]; int[] b = new int[Integer.parseInt(delims[1])]; // step 4 for (int i=0; i < a.length; i++) a[i] = Integer.parseInt(br.readLine()); // step 5 for (int i=0; i < b.length; i++) b[i] = Integer.parseInt(br.readLine()); br.close(); // step 6 // step 7 System.out.println(Arrays.toString(a)); System.out.println(Arrays.toString(b)); } } } ``` But it gives me error: -Unhandled exception type FileNotFoundException (line 11) -Unhandled exception type IOException (lines 15 26 30 32) but i don't know why. Someone can help me. Thanks in advance