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RootsOfQuadraticEquationStatic.java

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+// Program to find the root of quadratic equation (Static Method).
+
+public class RootsOfQuadraticEquationStatic {
+    public static void main(String[] args) {
+        double a = 2.3, b = 4, c = 5.6;
+        double root1, root2;
+        double determinant = b * b - 4 * a * c;
+        if (determinant > 0) {
+            root1 = (-b + Math.sqrt(determinant)) / (2 * a);
+            root2 = (-b - Math.sqrt(determinant)) / (2 * a);
+            System.out.format("root1 = %.2f and root2 = %.2f", root1, root2);
+        }
+        else if (determinant == 0) {
+            root1 = root2 = -b / (2 * a);
+            System.out.format("root1 = root2 = %.2f;", root1);
+        }
+        else {
+            double real = -b / (2 * a);
+            double imaginary = Math.sqrt(-determinant) / (2 * a);
+            System.out.format("root1 = %.2f+%.2fi", real, imaginary);
+            System.out.format("\nroot2 = %.2f-%.2fi", real, imaginary);
+        }
+    }    
+}