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changed methods to bool and simplified if statements in methods

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This commit is contained in:
Tim Lachmann 2024-10-29 14:12:21 +01:00
parent a1fefc1bd9
commit 4cfeffb680
1 changed files with 24 additions and 26 deletions
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34
src/Praktikum01/Zahlenfilter.java
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@ -23,34 +23,32 @@ public class Zahlenfilter {
public void checkNumbers(int grenze) { public void checkNumbers(int grenze) {
for (int i = 1; i <= grenze; i++) { for (int i = 1; i <= grenze; i++) {
checkDevideByFive(i); if (filter(i)){
checkEndsWithNine(i); System.out.println(i);
checkSumWithPrev(i);
} }
} }
}
public boolean filter(int i){
return !(checkDivideByFive(i) || checkEndsWithNine(i) || checkSumWithPrev(i)) ;
}
private void checkDevideByFive(int zahl) { private Boolean checkDivideByFive(int i) {
if (zahl % 5 == 0) { return i % 5 == 0;
System.out.println(zahl + " ist durch 5 teilbar!");
}
} }
private void checkEndsWithNine(int zahl) { private Boolean checkEndsWithNine(int i) {
if (zahl % 10 == 9) { return i % 10 == 9;
System.out.println(zahl + " endet auf 9!");
}
} }
private void checkSumWithPrev(int zahl) { private Boolean checkSumWithPrev(int i) {
if (zahl > 1) { if (i > 1) {
int vorgaenger = zahl - 1; int vorgaenger = i - 1;
int summe = zahl + vorgaenger; int summe = i + vorgaenger;
if (summe % 3 == 0) { return summe % 3 == 0;
System.out.println(zahl + " und " + vorgaenger + " addiert ergeben " + summe + " und " + summe + " ist durch 3 teilbar.");
}
} }
return false;
} }
} }