考虑这个在教程点上找到的程序(其中 br
是 BufferedReader 对象):
boolean eof = false;
// Parse incoming request
StreamTokenizer st = new StreamTokenizer(br);
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);
此代码片段适用于诸如“Hello this is a string”之类的字符串,它将打印出:
单词:你好
单词:这个
单词:是
单词:a
单词:字符串
但是如果我这样做:“Hello/this is a string”
它只会打印出来
单词:你好
这是为什么,我该如何解决?
最佳答案
正斜杠/在 StreamTokenizer 类中不被视为普通字符。您可以使用普通Char 方法更改默认行为:
import java.io.*;
public class StreamTokenizerSO {
public static void main(String[] args) throws IOException {
String aString = "Hello /this is a string";
Reader inputString = new StringReader(aString);
BufferedReader br = new BufferedReader(inputString);
boolean eof = false;
// Parse incoming request
StreamTokenizer st = new StreamTokenizer(br);
st.ordinaryChar('/');
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);
}
}
通过谷歌搜索“StreamTokenizer 正斜杠”找到了这个并得到了这个旧链接:http://www.dickbaldwin.com/java/Java061.htm
关于java - StreamTokenizer 在遇到斜杠时停止,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/48344730/