Add all 23 GoF design pattern implementations

2026-07-25 10:50:29 +05:30
commit f5688a6b32
164 changed files with 4371 additions and 0 deletions
--- a/03-behavioral/command/Command.java
+++ b/03-behavioral/command/Command.java
@@ -0,0 +1,8 @@
+package command;
+
+/** Command interface: every action is an object */
+public interface Command {
+    void execute();
+    void undo();
+    String getDescription();
+}