changed the file structure

Code/Steiner/Age/src/App.java

@@ -0,0 +1,30 @@
+import java.util.Scanner;
+
+public class App {
+    public static void main(String[] args) throws Exception {
+        double ageParent = 0;
+        double ageChild = 0;
+
+        ageParent = getInput("Parent");
+        ageChild = getInput("Child");
+
+        System.out.println("Calculating when the child is half the age of the parent");
+
+        for (double x = 0; x >= 0; x++) {
+            if ((ageParent + x) / 2 == ageChild + x) {
+                ageChild += x;
+                ageParent += x;
+                System.out.println("age of the child: " + ageChild);
+                System.out.println("age of the parent: " + ageParent);
+                System.out.println("That will be in " + x + " years");
+                break;
+            }
+        }
+    }
+
+    public static int getInput(String x) {
+        Scanner scan = new Scanner(System.in);
+        System.out.print("Enter the age of " + x + ": ");
+        return scan.nextInt();
+    }
+}