43 lines
1.5 KiB
Java
43 lines
1.5 KiB
Java
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.util.Scanner;
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public class Main {
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public static void main(String[] args) {
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Worthaeufigkeitsanalyse analyse = new Worthaeufigkeitsanalyse();
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File file = getFileFromArguments(args);
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String text = "";
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Scanner scanner = null;
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try {
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scanner = new Scanner(file);
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while (scanner.hasNextLine()){
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text = text + scanner.nextLine();
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text = text + " ";
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}
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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}
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analyse.verarbeiteText(text);
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analyse.druckeStatistik();
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}
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private static File getFileFromArguments(String[] args) {
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// ------------------------------------------------------------
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// Check if a valid filename has been supplied on command line:
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// ------------------------------------------------------------
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// Is there a command line argument at all?
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if (args.length <= 0) {
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throw new IllegalArgumentException("ERROR: You have to supply a filename on the command line!");
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}
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// Yes, there is at least one argument:
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String filename = args[0];
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File file = new File(filename);
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if (!file.exists()) { // Check if file with that name exists:
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throw new RuntimeException(String.format("ERROR: Data file: '%s' does not exist!", filename));
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}
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return file;
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}
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}
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