Add initial implementation including utility classes, core modules, and project configuration files

aufgabenblatt1/src/task3/NumberGuesser.java

@@ -0,0 +1,49 @@
+package task3;
+
+import java.util.Scanner;
+
+public class NumberGuesser {
+    private int number;
+
+    public NumberGuesser(int targetNumber){
+        this.number = targetNumber;
+    }
+    public boolean isBigger(int guess){
+        return guess < number;
+    }
+
+    public void guess(){
+        Scanner scanner = new Scanner(System.in);
+        System.out.println("Guess a number: ");
+        int guess = scanner.nextInt();
+        switch (Integer.compare(guess, number)) {
+            case -1 -> System.out.println("Too low!");
+            case 0 -> System.out.println("Correct!");
+            case 1 -> System.out.println("Too high!");
+        }
+    }
+
+    public void autoGuess(){
+        int low = Integer.MIN_VALUE;
+        int high = Integer.MAX_VALUE;
+
+        while (low <= high) {
+            int mid = low + (high - low) / 2;
+
+            if (mid == number) {
+                System.out.println("Found the number: " + mid);
+                return;
+            } else if (isBigger(mid)) {
+                low = mid + 1;
+            } else {
+                high = mid - 1;
+            }
+        }
+    }
+
+    public static void main(String[] args) {
+        NumberGuesser numberGuesser = new NumberGuesser(100);
+        System.out.println(numberGuesser.isBigger(Integer.MAX_VALUE/2));
+        numberGuesser.autoGuess();
+    }
+}