69 lines
1.8 KiB
Java
69 lines
1.8 KiB
Java
import java.io.*;
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import java.util.*;
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/**
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* Klasse zum duplizieren von Leerzeilen in Textdateien
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*/
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public class DoubleSpace {
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public static void main(String[] args) throws FileNotFoundException {
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doubleSpace2("test.txt","out.txt");
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}
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/**
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* Duplizierzt Leerzeilen bzw Zeilenumbrueche der
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* Datei inputFileName und speichert das Ergebnis in
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* outputFileName ab
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*/
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public static void doubleSpace(String inputFileName, String outputFileName) throws FileNotFoundException {
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Scanner input = new Scanner(new File(inputFileName));
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PrintStream output = new PrintStream(new File(outputFileName));
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if (input.hasNextLine()) {
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output.println(input.nextLine());
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}
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while (input.hasNextLine()) {
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output.println();
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output.println(input.nextLine());
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}
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output.close();
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input.close();
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}
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/**
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* Duplizierzt Leerzeilen bzw Zeilenumbrueche der
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* Datei inputFileName und speichert das Ergebnis in
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* outputFileName ab
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* Inklusive Fehlerbehandlung
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*/
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public static void doubleSpace2(String inputFileName, String outputFileName) {
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Scanner input = null;
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PrintStream output = null;
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try {
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input = new Scanner(new File(inputFileName));
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output = new PrintStream(new File(outputFileName));
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if (input.hasNextLine()) {
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output.println(input.nextLine());
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}
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while (input.hasNextLine()) {
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output.println();
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output.println(input.nextLine());
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}
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} catch (FileNotFoundException e) {
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System.out.println(e.getMessage());
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} finally {
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if (output != null) output.close();
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if (input != null) input.close();
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}
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}
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}
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