初始提交，未完全测试

kit/JavaKeyword.py

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+#!/usr/bin/env python3.9
+# -*- coding: utf-8 -*-
+"""
+JFinal JavaKeyword - Java Keyword Detection
+"""
+
+from typing import Set, FrozenSet
+
+class JavaKeyword:
+    """Java keyword detection utility"""
+    
+    _KEYWORD_SET: FrozenSet[str] = frozenset({
+        "abstract", "assert", "boolean", "break", "byte", "case", "catch",
+        "char", "class", "const", "continue", "default", "do", "double",
+        "else", "enum", "extends", "final", "finally", "float", "for",
+        "goto", "if", "implements", "import", "instanceof", "int",
+        "interface", "long", "native", "new", "package", "private",
+        "protected", "public", "return", "strictfp", "short", "static",
+        "super", "switch", "synchronized", "this", "throw", "throws",
+        "transient", "try", "void", "volatile", "while"
+    })
+    
+    _instance = None
+    
+    @staticmethod
+    def get_instance():
+        """Get shared instance"""
+        if JavaKeyword._instance is None:
+            JavaKeyword._instance = JavaKeyword()
+        return JavaKeyword._instance
+    
+    def __init__(self):
+        self._keywords = set(JavaKeyword._KEYWORD_SET)
+        # Make it read-only by default
+        self._read_only = True
+    
+    def add_keyword(self, keyword: str) -> 'JavaKeyword':
+        """Add custom keyword"""
+        if self._read_only:
+            raise RuntimeError("Cannot modify read-only JavaKeyword instance")
+        
+        if keyword and keyword.strip():
+            self._keywords.add(keyword)
+        
+        return self
+    
+    def remove_keyword(self, keyword: str) -> 'JavaKeyword':
+        """Remove keyword"""
+        if self._read_only:
+            raise RuntimeError("Cannot modify read-only JavaKeyword instance")
+        
+        self._keywords.discard(keyword)
+        return self
+    
+    def contains(self, word: str) -> bool:
+        """Check if word is a Java keyword"""
+        return word in self._keywords
+    
+    def is_keyword(self, word: str) -> bool:
+        """Check if word is a Java keyword (alias of contains)"""
+        return self.contains(word)
+    
+    @property
+    def keywords(self) -> FrozenSet[str]:
+        """Get all keywords"""
+        return frozenset(self._keywords)
+    
+    @property
+    def keyword_count(self) -> int:
+        """Get keyword count"""
+        return len(self._keywords)
+
+
+# Create shared instance
+me = JavaKeyword.get_instance()