Completed Assignment 05

Java-Assignment-005.iml

@@ -5,6 +5,7 @@
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
     </content>
+    <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
 </module>

src/Quadratic.java

@@ -0,0 +1,36 @@
+import java.util.Scanner;
+public class Quadratic {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("Enter the coefficients of the quadratic equation ax^2 + bx + c = 0:");
+        System.out.print("Input an integer for a: ");
+        double a = getValidDoubleInput(scanner);
+
+        System.out.print("Input an integer for b: ");
+        double b = getValidDoubleInput(scanner);
+
+        System.out.print("Input an integer for c: ");
+        double c = getValidDoubleInput(scanner);
+
+        double determinant = b * b - 4 * a * c;
+        if (determinant > 0) {
+            double root1 = (-b + Math.sqrt(determinant)) / (2 * a);
+            double root2 = (-b - Math.sqrt(determinant)) / (2 * a);
+            System.out.println("There are two distinct real roots: Root1 = " + root1 + ", Root2 = " + root2);
+        } else if (determinant == 0) {
+            double root = -b / (2 * a);
+            System.out.println("There is one identical real root: Root = " + root);
+        } else {
+            System.out.println("There are no real roots. Roots are complex numbers.");
+        }
+    }
+
+    private static double getValidDoubleInput(Scanner scanner) {
+        while (!scanner.hasNextDouble()) {
+            System.out.println("This is an invalid input. Input a valid number.");
+            scanner.next();
+        }
+        return scanner.nextDouble();
+    }
+}