Resolving a bufferReader error

Question

I'm getting an ArrayIndexOutOfBoundsException: 0 error.

Here is a small snippet:

public static void main(String[] args){
try{
    Fileread = new BufferedReader(new FileReader(args[0]));
}
catch(FileNotFoundException e){
    System.out.println("Error reading in file");
    System.exit(1);
}

I'm reading in a text file that is 50+ lines. I am somewhat new to just using args[] array to read in initial input. So forgive me for my lack of knowledge.

http://stackoverflow.com/questions/1055318/using-command-line-argument-for-passing-files-to-a-program — Jack Miller, Sep 19 '16 at 21:47
do you pass your path to your file as the first program argument? — Laksitha Ranasingha, Sep 19 '16 at 21:48
I am doing file.txt || java Memory: I am assuming that is the correct way? — mrprogrammer231, Sep 19 '16 at 21:51

score 0 · Answer 1 · answered Sep 19 '16 at 22:14

Assuming you do not get a FileNotFoundException, it is safe to say that your exception is related to your arguments i.e. arg[0]...

How are you running your java class? to be able to run it properly you need to run it like this. . i.e. if class name is Memory and filename is Memory.java then you compile it using javac Memory.java and you run it like this..

java Memory C:\abc.txt

Resolving a bufferReader error

1 Answers1