如何读取多个.txt 文件以使用 Scanner 进行编程？

Question

I have a program where I read in a.txt file using a scanner, and the code that follows prints out the sum of the integers in the.txt file.

To read in another.txt file to get the sum for that file, I have to manually change the code to point to the new file. I would like to know how I can setup the program so that it will automatically iterate to the next file and print the sum.

I'm using just basic scanner logic to read in the file.

Scanner txt = new Scanner(new File("/Users/.../25000.txt"));
        String line = txt.nextLine();
        String[] ne = line.split(" ");

I only have two files that I want to do this for: 1000.txt 25000.txt

Answer 1

You can create an array of file names and then iterate the array eg

String[] files = { "/Users/.../25000.txt", "/Users/.../35000.txt", "/Users/.../45000.txt" };
for (String file : files) {
    Scanner txt = new Scanner(new File(file));
    String line = txt.nextLine();
    String[] ne = line.split(" ");
    // ...
    txt.close();
}