new

tutorial/CalRootOfQuadEq.java

@@ -0,0 +1,28 @@
+package tutorial;
+
+import java.util.Scanner;
+
+public class CalRootOfQuadEq {
+    public static void main (String[] args) {
+        int a, b, c;
+        double x1, x2, delta;
+        Scanner input = new Scanner(System.in);
+        
+        System.out.print("Enter a : ");
+        a = input.nextInt();
+        
+        System.out.print("Enter b : ");
+        b = input.nextInt();
+        
+        System.out.print("enter c : ");
+        c = input.nextInt();
+        
+        //-b plus or minus delta and divided by 2a
+        //delta = sqaure root of (b square minus 4ac)
+        delta = Math.sqrt(((Math.pow(b,2)-(4*a*c))));
+        x1 = ((-b) + delta )/ 2*a;
+        x2 = ((-b) - delta )/ 2*a;
+        System.out.printf("%s%.2f%s%.2f\n", "x1= ",x1,", x2= ",x2);
+             
+    }
+}