void quoteChar(int ch) void pushBack void resetSyntax 描述 所述java.io.StreamTokenizer.quoteChar(INT CH)方法指定匹配对这个字符的分隔字符串常量在此标记生成。 当nextToken方法遇到字符串常量时,ttype字段设置为字符串分隔符,sval字段设置为字符串的主体。 如果遇到字符串引号字符,则识别字符串,包括字符串引号字符之后(但不包括)的所有字符,最多(但不包括)同一字符串引号字符的下一次出现,或行终止符,或文件结束。通常的转义序列(如“\ n”和“\ t”)会被识别,并在解析字符串时转换为单个字符。 将清除指定字符的任何其他属性设置。 声明 以下是java.io.StreamTokenizer.quoteChar()方法的声明。 public void quoteChar(int ch) 参数 ch - 角色。 返回值 此方法不返回值。 异常 NA 实例 以下示例显示了java.io.StreamTokenizer.quoteChar()方法的用法。 package com.tutorialspoint; import java.io.*; public class StreamTokenizerDemo { public static void main(String[] args) { String text = "Hello. This is a text \n that will be split " + "into tokens. 1 + 1 = 2"; try { // create a new file with an ObjectOutputStream FileOutputStream out = new FileOutputStream("test.txt"); ObjectOutputStream oout = new ObjectOutputStream(out); // write something in the file oout.writeUTF(text); oout.flush(); // create an ObjectInputStream for the file we created before ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt")); // create a new tokenizer Reader r = new BufferedReader(new InputStreamReader(ois)); StreamTokenizer st = new StreamTokenizer(r); // specify o as a quote char st.quoteChar('o'); // print the stream tokens boolean eof = false; do { int token = st.nextToken(); switch (token) { case StreamTokenizer.TT_EOF: System.out.println("End of File encountered."); eof = true; break; case StreamTokenizer.TT_EOL: System.out.println("End of Line encountered."); break; case StreamTokenizer.TT_WORD: System.out.println("Word: " + st.sval); break; case StreamTokenizer.TT_NUMBER: System.out.println("Number: " + st.nval); break; default: System.out.println((char) token + " encountered."); if (token == '!') { eof = true; } } } while (!eof); } catch (Exception ex) { ex.printStackTrace(); } } } 让我们编译并运行上面的程序,这将产生以下结果 Word: AHell o encountered. Word: that Word: will Word: be Word: split Word: int o encountered. Word: kens. Number: 1.0 + encountered. Number: 1.0 = encountered. Number: 2.0 End of File encountered. void pushBack void resetSyntax