詞法分析器的源程序java

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1、源程序packageAnalyer;importjava.io.File;importjava.io.FileReader;importjava.io.BufferedReader;importjava.io.FileNotFoundException;importjava.io.IOException;importjava.util.ArrayList;importjava.util.HashMap;publicclassanalyetest{publicArrayListbracket;publicArrayListkeyword;publicArray

2、Listsymbol;publicArrayListsemicolon;publicArrayListoperator;staticHashMapBRACKET;staticHashMapKEYWORD;staticHashMapSEMICOLON;staticHashMapOPERATOR;publicanalyetest(){this.KEYWORD=newHashMap();this.BRACKET=newHashMap();this.SEMICOLON=newHashMap();this.OPERATOR=newHashMap();this.brac

3、ket=newArrayList();this.keyword=newArrayList();this.symbol=newArrayList();this.semicolon=newArrayList();this.operator=newArrayList();}publicvoidinit(){initBracket();initKeyword();initSemicolon();initOperator();}publicvoidinitBracket(){this.BRACKET.put("(","(");this.BRACKET.put(")",

4、")");this.BRACKET.put("[","[");this.BRACKET.put("]","]");this.BRACKET.put("{","{");this.BRACKET.put("}","}");}publicvoidinitKeyword(){this.KEYWORD.put("class","class");this.KEYWORD.put("package","package");this.KEYWORD.put("this","this");this.KEYWORD.put("abstract","abstract");this

5、.KEYWORD.put("boolean","boolean");this.KEYWORD.put("break","break");this.KEYWORD.put("byte","byte");this.KEYWORD.put("case","case");this.KEYWORD.put("cast","cast");this.KEYWORD.put("catch","catch");this.KEYWORD.put("char","char");this.KEYWORD.put("continue","continue");this.KEYWORD

6、.put("default","default");this.KEYWORD.put("do","do");this.KEYWORD.put("double","double");this.KEYWORD.put("else","else");this.KEYWORD.put("extends","extends");this.KEYWORD.put("false","false");this.KEYWORD.put("final","final");this.KEYWORD.put("finally","finally");this.KEYWORD.put

7、("float","float");this.KEYWORD.put("for","for");this.KEYWORD.put("future","future");this.KEYWORD.put("generic","generic");this.KEYWORD.put("if","if");this.KEYWORD.put("implements","implements");this.KEYWORD.put("import","import");this.KEYWORD.put("inner","inner");this.KEYWORD.put("

8、instanceof","instanceof");