Numbers (flexiblere Version von Zahlenfilter)

Numbers.java

+public class Numbers {
+
+    public static void main(String[] args) {
+        for (int i = 1; i <= 200; i++) {
+            if (isDivisibleBy(5, i)) {
+                System.out.println(i + " ist durch " + 5 + " teilbar!");
+            } else if (lastDigitIs(9, i)) {
+                System.out.println(i + " endet auf " + 9);
+            } else if (sumWithPredecessorIsDivisibleBy(3, i)) {
+                System.out.println(i + " und " + (i - 1) + " addiert ergeben " + (2*i-1) + " und " + (2*i-1) + " ist durch " + 3 + " teilbar");
+            }
+        }
+    }
+
+    public static boolean isDivisibleBy( int divisor, int number) {
+        if (number % divisor == 0 ) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    public static boolean lastDigitIs( int digit , int number) {
+        if (number % 10 == digit) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    public static boolean sumWithPredecessorIsDivisibleBy( int divisor, int number) {
+        int s = 2 * number - 1;
+        if (isDivisibleBy(divisor, s)) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+}

Visitenkarte.java

+public class Visitenkarte {
+
+    private String name;
+    private String university;
+    private String street;
+    private int number;
+    private int postCode;
+    private String city;
+
+
+    public Visitenkarte (String name, String university, String street, int number, int postCode, String city) {
+        this.name = name;
+        this.university = university;
+        this.street = street;
+        this.number = number;
+        this.postCode = postCode;
+        this.city = city;
+    }
+
+    public String toString() {
+        String e = String.format("|%-30s|", " ").replace(' ', '-');
+        String n = String.format("|%-30s|", name);
+        String u = String.format("|%-30s|", university);
+        String filler = String.format("|%-30s|", " ");
+        String s = String.format("|%-30s|", street);
+        String address = street + " " + number;
+        String a = String.format("|%-30s|", address);
+        String postAndCity = postCode + " " + city;
+        String p = String.format("|%-30s|", postAndCity);
+        return e + "\n" + n + "\n" + u + "\n" + filler + "\n" + a + "\n" + p + "\n" + e;
+    }
+    public static void main(String[] args) {
+        String n = "Prof. Dr. Georg-Simon Ohm";
+        String u = "TH Nürnberg";
+        String s = "Keßlerplatz";
+        int nu = 12;
+        int p = 90489;
+        String c = "Nuremberg";
+        Visitenkarte One = new Visitenkarte(n, u, s, nu, p, c);
+        System.out.println(One);
+    }
+}