1 files changed, 30 insertions, 0 deletions
diff --git a/src/Calculator.java b/src/Calculator.java
new file mode 100644
index 0000000..c43ca9f
--- /dev/null
+++ b/src/Calculator.java
@@ -0,0 +1,30 @@
+import java.util.Scanner;
+
+public class Calculator {
+    public static void main(String[] args) {
+        // String expr = "(84 / 4 * 3 - 9) * 2 + 1 / 5"; // 108.2
+        String expr = new String(" ");
+        Scanner sc = new Scanner(System.in);
+        Parser p;
+
+        if (args.length == 0) {
+            new GFrame("Calculator");
+        } else {
+            if (args[0].equals("-n")) {
+                System.out.println("Type \"exit\" or Ctrl+C to exit.");
+                while (true) {
+                    System.out.print(">>> ");
+                    expr = sc.nextLine();
+                    if (!expr.equals("exit")) {
+                        p = new Parser(expr);
+                        System.out.println(p.eval());
+                    } else {
+                        sc.close();
+                        break;
+                    }
+                }
+            } else {
+            }
+        }
+    }
+}