update,

it114105/itp3914/Lab04/Ex3.java

@@ -0,0 +1,16 @@
+import java.util.Scanner;
+
+public class Ex3 {
+    public static void main(String[] args) {
+        Scanner input = new Scanner(System.in);
+        double a, b, c;
+        System.out.print("Please enter a: ");
+        a = input.nextDouble();
+        System.out.print("Please enter b: ");
+        b = input.nextDouble();
+        System.out.print("Please enter c: ");
+        c = input.nextDouble();
+        System.out.printf("x1 = %.2f, x2 = %.2f\n", ((-b+Math.sqrt(b*b - 4*a*c))/(2*a)), ((-b-Math.sqrt(b*b-4*a*c))/(2*a)));
+
+    }
+}