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Vorlesung 4 / Aufgabe 6

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Sebastian Brosch 2024-05-13 16:04:59 +02:00
parent 7e87a3bec2
commit 01bb3e9def
2 changed files with 129 additions and 78 deletions
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78
S01-VL04-Aufgabe 6/Aufgabe.java
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class Aufgabe {
public static void main(String[] args) {
enum Monate {Januar, Februar, März, April, Mai, Juni, Juli, August, September, Oktober, November, Dezember};
String quartal = "";
Monate monat = Monate.Oktober;
// Ursprüngliche switch-Anweisung:
switch(monat) {
case Januar : quartal = "1. Quartal"; break;
case Februar : quartal = "1. Quartal"; break;
case März : quartal = "1. Quartal"; break;
case April : quartal = "2. Quartal"; break;
case Mai : quartal = "2. Quartal"; break;
case Juni : quartal = "2. Quartal"; break;
case Juli : quartal = "3. Quartal"; break;
case August : quartal = "3. Quartal"; break;
case September : quartal = "3. Quartal"; break;
case Oktober : quartal = "4. Quartal"; break;
case November : quartal = "4. Quartal"; break;
case Dezember : quartal = "4. Quartal"; break;
default : quartal = "";
}
System.out.println("a.) ursprüngliche switch-Anweisung: " + quartal);
// Zusammenfassung mehrerer Ausdrücke.
switch(monat) {
case Januar, Februar, März : quartal = "1. Quartal"; break;
case April, Mai, Juni : quartal = "2. Quartal"; break;
case Juli, August, September : quartal = "3. Quartal"; break;
case Oktober, November, Dezember : quartal = "4. Quartal"; break;
default : quartal = "";
}
System.out.println("b.) Zusammenfassung mehrerer Ausdrücke: " + quartal);
// Pfeilnotation
switch (monat) {
case Januar -> quartal = "1. Quartal";
case Februar -> quartal = "1. Quartal";
case März -> quartal = "1. Quartal";
case April -> quartal = "2. Quartal";
case Mai -> quartal = "2. Quartal";
case Juni -> quartal = "2. Quartal";
case Juli -> quartal = "3. Quartal";
case August -> quartal = "3. Quartal";
case September -> quartal = "3. Quartal";
case Oktober -> quartal = "4. Quartal";
case November -> quartal = "4. Quartal";
case Dezember -> quartal = "4. Quartal";
default -> quartal = "";
}
System.out.println("c.) Pfeilnotation: " + quartal);
// Zusammenfassung mehrerer Ausdrücke in Pfeilnotation.
switch(monat) {
case Januar, Februar, März -> quartal = "1. Quartal";
case April, Mai, Juni -> quartal = "2. Quartal";
case Juli, August, September -> quartal = "3. Quartal";
case Oktober, November, Dezember -> quartal = "4. Quartal";
default -> quartal = "";
}
System.out.println("d.) Zusammenfassung mehrerer Ausdrücke in Pfeilnotation: " + quartal);
// switch-Ausdruck mit Pfeilnotation
quartal = switch(monat) {
case Januar, Februar, März -> "1. Quartal";
case April, Mai, Juni -> "2. Quartal";
case Juli, August, September -> "3. Quartal";
case Oktober, November, Dezember -> "4. Quartal";
default -> "";
};
System.out.println("e.) switch-Ausdruck mit Pfeilnotation: " + quartal);
}
}

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VL04/Aufgabe06/Aufgabe06.java Normal file
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package VL04.Aufgabe06;
/**
* Vorlesung 4 / Aufgabe 6
*
* @author Sebastian Brosch
*/
public class Aufgabe06 {
public static void main(String[] args) {
enum Months {
January,
February,
March,
April,
May,
June,
July,
August,
September,
October,
November,
December
};
String quarter = "";
Months month = Months.October;
System.out.printf("Monat: %s\n\n", month);
switch (month) {
case January:
quarter = "1. Quartal";
break;
case February:
quarter = "1. Quartal";
break;
case March:
quarter = "1. Quartal";
break;
case April:
quarter = "2. Quartal";
break;
case May:
quarter = "2. Quartal";
break;
case June:
quarter = "2. Quartal";
break;
case July:
quarter = "3. Quartal";
break;
case August:
quarter = "3. Quartal";
break;
case September:
quarter = "3. Quartal";
break;
case October:
quarter = "4. Quartal";
break;
case November:
quarter = "4. Quartal";
break;
case December:
quarter = "4. Quartal";
break;
default:
quarter = "";
}
System.out.printf("a.) ursprüngliche switch-Anweisung: %s\n", quarter);
switch (month) {
case January, February, March:
quarter = "1. Quartal";
break;
case April, May, June:
quarter = "2. Quartal";
break;
case July, August, September:
quarter = "3. Quartal";
break;
case October, November, December:
quarter = "4. Quartal";
break;
default:
quarter = "";
}
System.out.printf("b.) Zusammenfassung mehrerer Ausdrücke: %s\n", quarter);
switch (month) {
case January -> quarter = "1. Quartal";
case February -> quarter = "1. Quartal";
case March -> quarter = "1. Quartal";
case April -> quarter = "2. Quartal";
case May -> quarter = "2. Quartal";
case June -> quarter = "2. Quartal";
case July -> quarter = "3. Quartal";
case August -> quarter = "3. Quartal";
case September -> quarter = "3. Quartal";
case October -> quarter = "4. Quartal";
case November -> quarter = "4. Quartal";
case December -> quarter = "4. Quartal";
default -> quarter = "";
}
System.out.printf("c.) Pfeilnotation: %s\n", quarter);
switch (month) {
case January, February, March -> quarter = "1. Quartal";
case April, May, June -> quarter = "2. Quartal";
case July, August, September -> quarter = "3. Quartal";
case October, November, December -> quarter = "4. Quartal";
default -> quarter = "";
}
System.out.printf("d.) Zusammenfassung mehrerer Ausdrücke in Pfeilnotation: %s\n", quarter);
quarter = switch (month) {
case January, February, March -> "1. Quartal";
case April, May, June -> "2. Quartal";
case July, August, September -> "3. Quartal";
case October, November, December -> "4. Quartal";
default -> "";
};
System.out.printf("e.) switch-Ausdruck mit Pfeilnotation: %s\n", quarter);
}
}