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Initl commit of exercise 1

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Simon Giesel 2019-05-14 12:51:17 +02:00
parent a61dc4e7f2
commit f1ed0953ef
8 changed files with 208 additions and 0 deletions
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6
de.hhn.ai.prog2.blatt6.collections/.classpath Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
<classpathentry kind="src" path="src"/>
<classpathentry kind="output" path="bin"/>
</classpath>

17
de.hhn.ai.prog2.blatt6.collections/.project Normal file
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<projectDescription>
<name>de.hhn.ai.prog2.blatt6.collections</name>
<comment/>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
</projectDescription>

7
de.hhn.ai.prog2.blatt6.collections/.settings/org.eclipse.jdt.core.prefs Normal file
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eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
org.eclipse.jdt.core.compiler.compliance=1.8
org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
org.eclipse.jdt.core.compiler.source=1.8

22
de.hhn.ai.prog2.blatt6.collections/.vscode/launch.json vendored Normal file
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{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"type": "java",
"name": "Debug (Launch) - Current File",
"request": "launch",
"mainClass": "${file}"
},
{
"type": "java",
"name": "Debug (Launch)-App<de.hhn.ai.prog2.blatt6.collections>",
"request": "launch",
"mainClass": "app.App",
"projectName": "de.hhn.ai.prog2.blatt6.collections",
"console": "integratedTerminal",
}
]
}

79
de.hhn.ai.prog2.blatt6.collections/src/app/App.java Normal file
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package app;
import java.util.Scanner;
public class App {
public static void main(String[] args) throws Exception {
Studentenverwaltung verwaltung = new Studentenverwaltung();
Scanner scanner = new Scanner(System.in);
String[] inputData = new String[2];
InputState inputState = InputState.DEFAULT;
System.out.print("Herzlich Willkommen bei der Studentenverwaltung.\n"
+ "Bitte verwenden Sie:\n list -> um alle Studenten anzuzeigen\n"
+ " add -> um einen Studenten hinzuzufügen\n remove -> um einen Studenten zu entfernen\n"
+ " quit -> um das Progrmam zu beenden\n> ");
verwaltung.immatrikulieren("Mustermann", "Max", 123456);
loop: while (scanner.hasNextLine()) {
String line = scanner.nextLine().toString();
switch (inputState) {
case DEFAULT:
switch (line.toLowerCase()) {
case "q":
case "quit":
break loop;
case "list":
verwaltung.listeAusgeben();
System.out.print("> ");
break;
case "add":
inputState = InputState.ADD1;
System.out.print("Nachname: ");
break;
case "remove":
inputState = InputState.REMOVE;
System.out.print("Matrikelnummer: ");
break;
default:
System.out.print("Fehler: Kommando exisitert nicht. Bitte versuchen Sie es erneut...\n> ");
break;
}
break;
case ADD1:
inputData[0] = line;
inputState = InputState.ADD2;
System.out.print("Vorname: ");
break;
case ADD2:
inputData[1] = line;
inputState = InputState.ADD3;
System.out.print("Matrikelnummer: ");
break;
case ADD3:
inputState = InputState.DEFAULT;
try {
verwaltung.immatrikulieren(inputData[0], inputData[1], Integer.parseInt(line));
System.out.print("Student wurde erfolgreich immatrikuliert!\n> ");
} catch (IllegalArgumentException e) {
System.out
.print("Student konnte nicht immatrikuliert werden. Bitte versuchen Sie es erneut...\n> ");
}
break;
case REMOVE:
inputState = InputState.DEFAULT;
try {
verwaltung.exmatrikulieren(Integer.parseInt(line));
System.out.print("Student wurde erfolgreich exmatrikuliert!\n> ");
} catch (IllegalArgumentException e) {
System.out
.print("Student konnte nicht exmatrikuliert werden. Bitte versuchen Sie es erneut...\n> ");
}
break;
}
}
scanner.close();
}
}

5
de.hhn.ai.prog2.blatt6.collections/src/app/InputState.java Normal file
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package app;
public enum InputState {
DEFAULT, ADD1, ADD2, ADD3, REMOVE;
}

23
de.hhn.ai.prog2.blatt6.collections/src/app/Studentenverwaltung.java Normal file
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package app;
import java.util.HashMap;
public class Studentenverwaltung {
private HashMap<Integer, Studi> studis = new HashMap<Integer, Studi>();
public void immatrikulieren(String name, String vorname, int matrikelnummer) {
if (studis.get(matrikelnummer) != null)
throw new IllegalArgumentException(); // geprüfte Exception ??
else
studis.put(matrikelnummer, new Studi(name, vorname, matrikelnummer));
}
public void exmatrikulieren(int matrikelnummer) {
if (studis.remove(matrikelnummer) == null)
throw new IllegalArgumentException(); // Fehlermeldung ausgegeben ??
}
public void listeAusgeben() {
studis.forEach((k, v) -> System.out.println(k + ": " + v.getName() + " " + v.getLastName()));
}
}

49
de.hhn.ai.prog2.blatt6.collections/src/app/Studi.java Normal file
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package app;
public class Studi {
private String lastName;
private String name;
private int number;
public Studi(String lastName, String name, int number) {
this.lastName = lastName;
this.name = name;
this.number = number;
}
private boolean checkName(String name) {
if (name.length() < 2)
throw new IllegalArgumentException();
return true;
}
public String getLastName() {
return this.lastName;
}
public void setLastName(String lastName) {
if (checkName(lastName))
this.lastName = lastName;
}
public String getName() {
return this.name;
}
public void setName(String name) {
if (checkName(name))
this.name = name;
}
public int getNumber() {
return this.number;
}
public void setNumber(int number) {
if (number > 99999 && number < 1000000)
this.number = number;
else
throw new IllegalArgumentException();
}
}