style guide
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@ -6,28 +6,28 @@ import java.util.Random;
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/**
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* Vorlesung 12 - Ein- und Ausgabe - Aufgabe 1
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*
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* @author Sebastian Brosch
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* @see https://gitea.hb.dhbw-stuttgart.de/sebastianbrosch/VL-Programmieren/src/branch/main/VL12/Aufgabe01
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*/
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public class Aufgabe01 {
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public static void main(String[] args) {
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final String COLUMN_SEPARATOR = "#";
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final int START_KUNDENNUMMER = 100000;
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int cntDataSets = 0;
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int numberOfDatasets = 0;
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do {
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try {
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System.out.print("Anzahl der Datensätze: ");
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cntDataSets = Integer.parseInt(System.console().readLine());
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numberOfDatasets = Integer.parseInt(System.console().readLine());
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// only positive numbers are valid.
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if(cntDataSets <= 0) {
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if (numberOfDatasets <= 0) {
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System.out.println("Bitte geben Sie eine gültige Anzahl ein (min. 1)!");
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}
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} catch(NumberFormatException e) {
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} catch (NumberFormatException e) {
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System.out.println("Es wurde keine gültige Anzahl Datensätze eingegeben!");
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}
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} while(cntDataSets <= 0);
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} while (numberOfDatasets <= 0);
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StringFeld namen = new StringFeld(getPathFromPackage() + "/input/Nachnamen.TXT");
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StringFeld strassen = new StringFeld(getPathFromPackage() + "/input/Strassen.TXT");
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@ -41,7 +41,7 @@ public class Aufgabe01 {
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final File fileOutputSeparator = new File(folderOutput + "output-separator.txt");
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final File parentFolder = fileOutputFixedWidth.getParentFile();
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if(null != parentFolder) {
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if (null != parentFolder) {
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parentFolder.mkdirs();
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}
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@ -49,7 +49,7 @@ public class Aufgabe01 {
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FileWriter outputFixedWidth = new FileWriter(fileOutputFixedWidth);
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FileWriter outputSeparator = new FileWriter(fileOutputSeparator);
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for(int i = 0; i < cntDataSets; i++) {
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for (int i = 0; i < numberOfDatasets; i++) {
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int kundennummer = START_KUNDENNUMMER + i;
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int hausnummer = getRandomNumber(1, 99999);
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int umsatz = getRandomNumber(500, 2000);
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@ -77,23 +77,27 @@ public class Aufgabe01 {
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outputFixedWidth.close();
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outputSeparator.close();
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} catch(Throwable e) {;}
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} catch (Throwable e) {
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;
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}
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System.out.println("Die Testdaten (" + cntDataSets + " Zeilen) wurden erzeugt.");
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System.out.println("Die Testdaten (" + numberOfDatasets + " Zeilen) wurden erzeugt.");
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}
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/**
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* Method to determine a random number from a certain range.
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*
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* @param start The first number of the range.
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* @param end The last number of the range.
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* @param end The last number of the range.
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* @return A random number from a certain range.
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*/
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private static int getRandomNumber(int start, int end) {
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return (new Random()).nextInt(end-start) + start;
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return (new Random()).nextInt(end - start) + start;
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}
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/**
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* Method to get the relative path based on the package name.
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*
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* @return The relative path of the package based on the package name.
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*/
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private static String getPathFromPackage() {
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@ -8,6 +8,7 @@ import java.util.List;
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/**
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* A field to store some information.
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*
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* @author Sebastian Brosch
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*/
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class StringFeld {
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@ -23,13 +24,14 @@ class StringFeld {
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List<String> lines = getFileLines(filePath);
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this.values = new String[lines.size()];
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for(int i = 0; i < lines.size(); i++) {
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for (int i = 0; i < lines.size(); i++) {
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this.values[i] = lines.get(i).split(separator)[index];
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}
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}
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/**
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* Method to get a value.
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*
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* @param index The index of the value.
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* @return The value of the given index.
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*/
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@ -40,14 +42,15 @@ class StringFeld {
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/**
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* Method to get a value.
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* @param index The index of the value.
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*
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* @param index The index of the value.
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* @param maxLength The max length of the value.
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* @return The value of the given index.
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*/
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public String get(int index, int maxLength) {
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index = index % this.values.length;
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if(this.values[index].length() > maxLength) {
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if (this.values[index].length() > maxLength) {
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return this.values[index].substring(0, maxLength);
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} else {
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return this.values[index];
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@ -56,6 +59,7 @@ class StringFeld {
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/**
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* Method to get all the lines of a file.
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*
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* @param filePath The path to the file to get the lines from.
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* @return A list with all lines of the file.
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*/
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@ -8,41 +8,45 @@ import java.nio.file.Paths;
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/**
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* Vorlesung 12 - Ein- und Ausgabe - Aufgabe 2
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*
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* @author Sebastian Brosch
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* @see https://gitea.hb.dhbw-stuttgart.de/sebastianbrosch/VL-Programmieren/src/branch/main/VL12/Aufgabe02
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*/
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public class Aufgabe02 {
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public static void main(String[] args) {
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try {
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int words = 0;
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int numbers = 0;
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int numberOfWords = 0;
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int numberOfNumbers = 0;
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StringReader stringReader = new StringReader(getInputString(getPathFromPackage() + "/input/input.txt"));
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StreamTokenizer streamTokenizer = new StreamTokenizer(stringReader);
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while(streamTokenizer.nextToken() != StreamTokenizer.TT_EOF) {
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switch(streamTokenizer.ttype) {
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while (streamTokenizer.nextToken() != StreamTokenizer.TT_EOF) {
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switch (streamTokenizer.ttype) {
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case StreamTokenizer.TT_WORD:
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words++;
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numberOfWords++;
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System.out.printf("ZEICHENKETTE:\t%s\n", streamTokenizer.sval);
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break;
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case StreamTokenizer.TT_NUMBER:
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numbers++;
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numberOfNumbers++;
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System.out.printf("ZAHL:\t\t%.0f\n", streamTokenizer.nval);
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break;
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}
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}
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System.out.printf("Gelesene Zahlen: %d\n", numbers);
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System.out.printf("Gelesene Zeichenketten: %d\n", words);
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System.out.printf("Insgesamt gelesene Token: %d\n", (numbers + words));
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} catch (Throwable e) {;}
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System.out.printf("Gelesene Zahlen: %d\n", numberOfNumbers);
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System.out.printf("Gelesene Zeichenketten: %d\n", numberOfWords);
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System.out.printf("Insgesamt gelesene Token: %d\n", (numberOfNumbers + numberOfWords));
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} catch (Throwable e) {
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;
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}
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}
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/**
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* Method to get the content of a file as a string.
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*
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* @param inputPath The path of the file.
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* @return The content of the file or an empty string if the file is not available.
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* @return The content of the file or an empty string if the file is not
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* available.
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*/
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private static String getInputString(String inputPath) {
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try {
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@ -55,6 +59,7 @@ public class Aufgabe02 {
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/**
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* Method to get the relative path based on the package name.
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*
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* @return The relative path of the package based on the package name.
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*/
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private static String getPathFromPackage() {
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