3 files changed, 52 insertions, 15 deletions
diff --git a/jlox/app/build.gradle b/jlox/app/build.gradle
index 87365b8..799620d 100644
--- a/jlox/app/build.gradle
+++ b/jlox/app/build.gradle
@@ -34,10 +34,18 @@ java {
 
 application {
     // Define the main class for the application.
-    mainClass = 'org.example.App'
+    mainClass = 'org.example.lox'
 }
 
 tasks.named('test') {
     // Use JUnit Platform for unit tests.
     useJUnitPlatform()
 }
+
+tasks.named('jar') {
+    manifest {
+        attributes(
+            'Main-Class': 'org.example.lox'
+        )
+    }
+}
diff --git a/jlox/app/src/main/java/org/example/App.java b/jlox/app/src/main/java/org/example/App.java
deleted file mode 100644
index e7e1af9..0000000
--- a/jlox/app/src/main/java/org/example/App.java
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * This source file was generated by the Gradle 'init' task
- */
-package org.example;
-
-public class App {
-    public String getGreeting() {
-        return "Hello World!";
-    }
-
-    public static void main(String[] args) {
-        System.out.println(new App().getGreeting());
-    }
-}
diff --git a/jlox/app/src/main/java/org/example/lox.java b/jlox/app/src/main/java/org/example/lox.java
new file mode 100644
index 0000000..e15f8ad
--- /dev/null
+++ b/jlox/app/src/main/java/org/example/lox.java
@@ -0,0 +1,43 @@
+package org.example;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.nio.charset.Charset;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
+public class lox {
+    public static void main(String[] args) throws IOException {
+        switch (args.length) {
+            case 0:
+                RunPropmt();
+                return;
+            case 1:
+                InerpritFile(args[0]);
+                return;
+            default:
+                System.out.println("Invalid arguments");
+        }
+    }
+
+    private static void RunPropmt() throws IOException {
+        InputStreamReader inp = new InputStreamReader(System.in);
+        BufferedReader reader= new BufferedReader(inp);
+
+        while (true) {
+            System.out.print("$ ");
+            String prompt = reader.readLine();
+            if (prompt == null) break;
+            run(prompt);
+        }
+    }
+
+    private static void InerpritFile(String fileName) throws IOException {
+        byte[] bytes = Files.readAllBytes(Paths.get(fileName));
+        run(new String(bytes, Charset.defaultCharset()));
+    }
+
+    private static void run(String program) {
+        System.out.println(program);
+    }
+}