From 1a55157dc5381afbe3a896ff2f5aab451f98fd4c Mon Sep 17 00:00:00 2001
From: Dominik Stahl <dominik@samdj.de>
Date: Thu, 30 Jan 2025 09:07:40 +0100
Subject: [PATCH] Add Quadratics class

---
 .../control_structures/Quadratics.java        | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 src/de/dhbwka/java/exercise/control_structures/Quadratics.java

diff --git a/src/de/dhbwka/java/exercise/control_structures/Quadratics.java b/src/de/dhbwka/java/exercise/control_structures/Quadratics.java
new file mode 100644
index 0000000..f4f2d24
--- /dev/null
+++ b/src/de/dhbwka/java/exercise/control_structures/Quadratics.java
@@ -0,0 +1,36 @@
+package de.dhbwka.java.exercise.control_structures;
+
+public class Quadratics {
+  public static void main(String[] args) {
+    java.util.Scanner scan = new java.util.Scanner(System.in);
+
+    System.out.print("a: ");
+    double a = scan.nextDouble();
+    System.out.print("b: ");
+    double b = scan.nextDouble();
+    System.out.print("c: ");
+    double c = scan.nextDouble();
+
+    scan.close();
+
+    if (a == 0) {
+      if (b == 0) {
+        System.out.println("Die Gleichung ist degeneriert.");
+      } else {
+        double x = -c / b;
+        System.out.println("x = " + x);
+      }
+    } else {
+      double d = b * b - 4 * a * c;
+      if (d >= 0) {
+        double x1 = (-b + Math.sqrt(d)) / (2 * a);
+        double x2 = (-b - Math.sqrt(d)) / (2 * a);
+        System.out.println("x1 = " + x1 + ", x2 = " + x2);
+      } else {
+        double real = -b / (2 * a);
+        double imag = Math.sqrt(-d) / (2 * a);
+        System.out.println("x1 = " + real + " + " + imag + "i, x2 = " + real + " - " + imag + "i");
+      }
+    }
+  }
+}