Feat/tree and update checklist

CheckList.md

@@ -8,7 +8,7 @@
 
 ## 🧭 System Information & Management
 - [ ] systeminfo  
-- [ ] hostname  
+- [x] hostname  
 - [x] ver  
 - [ ] vol  
 - [ ] set  
@@ -38,7 +38,7 @@
 - [x] move  
 - [ ] rename / ren  
 - [ ] attrib  
-- [ ] tree  
+- [x] tree  
 - [x] type  
 - [ ] more  
 - [ ] find  
@@ -97,7 +97,7 @@
 - [ ] net user  
 - [ ] net localgroup  
 - [ ] runas  
-- [ ] whoami  
+- [x] whoami  
 - [ ] cacls  
 - [ ] icacls  
 - [ ] cipher  
@@ -111,9 +111,9 @@
 - [ ] pause  
 - [x] cls  
 - [x] exit  
-- [ ] title  
-- [ ] color  
-- [ ] time  
+- [x] title  
+- [x] color  
+- [x] time  
 - [x] date  
 - [ ] shutdown  
 - [ ] choice  
@@ -172,7 +172,7 @@
 - [ ] call  
 - [x] cd / chdir  
 - [x] cls  
-- [ ] color  
+- [x] color  
 - [x] copy  
 - [x] date  
 - [x] del / erase  
@@ -200,8 +200,8 @@
 - [ ] setlocal  
 - [ ] shift  
 - [ ] start  
-- [ ] time  
-- [ ] title  
+- [x] time  
+- [x] title  
 - [x] type  
 - [x] ver  
 - [ ] verify  

src/main/java/com/mycmd/App.java

@@ -56,6 +56,7 @@ private static void registerCommands(Map<String, Command> commands) {
         commands.put("whoami", new WhoamiCommand());
         commands.put("touch", new TouchCommand());
         commands.put("time", new TimeCommand());
+        commands.put("tree", new TreeCommand());
         commands.put("date", new DateCommand());
     }
 }

src/main/java/com/mycmd/commands/TreeCommand.java

@@ -0,0 +1,37 @@
+package com.mycmd.commands;
+
+import com.mycmd.Command;
+import com.mycmd.ShellContext;
+import java.io.File;
+
+public class TreeCommand implements Command {
+    public void execute(String[] args, ShellContext context) {
+        File[] files = context.getCurrentDir().listFiles();
+
+        if (files == null || files.length == 0) {
+            System.out.println("No files found.");
+            return;
+        }
+
+        System.out.println(context.getCurrentDir().getAbsolutePath());
+        printDirectory(files, "", true);
+        System.out.println();
+    }
+
+    private void printDirectory(File[] files, String prefix, boolean isLast) {
+        if (files == null || files.length == 0) return;
+
+        for (int i = 0; i < files.length; i++) {
+            File f = files[i];
+            if (f.isHidden()) continue;
+
+            boolean last = (i == files.length - 1);
+            System.out.println(prefix + (last ? "└───" : "├───") + f.getName());
+
+            if (f.isDirectory()) {
+                String newPrefix = prefix + (last ? "    " : "│   ");
+                printDirectory(f.listFiles(), newPrefix, last);
+            }
+        }
+    }
+}