我必须删除文件中的所有注释。引号内的注释分隔符应视为文本，并且必须打印到屏幕上。评论内的评论被视为其他评论，必须删除。在switch语句中表示单引号的错误

我在遇到下面的switch语句时遇到了单引号问题，它给了我一个错误。

我知道错误是什么，但我只是不知道如何解决它。

import java.io.*;

public class Q3{

public static final int STATE_NORMAL = 0;

public static final int STATE_QUOTE_SINGLE = 1; // this:''

public static final int STATE_QUOTE_DOUBLE = 5; // this: ""

public static final int STATE_SLASH = 2; // this:/

public static final int STATE_SLASH_STAR = 3; // this: /* *

public static final int STATE_COMMENT = 4; // this: /* */ || /* only

public static void main(String[] argv) throws IOException{

final int EOF = -1;

InputStreamReader in = new InputStreamReader(System.in);

int c;

char[] buffer = new char[2];

int currState = Q3.STATE_NORMAL;

char outChar;

while((c = in.read()) != EOF){

outChar = (char) c;

switch (outChar){

case '/' :

/* if(currState == Q3.STATE_QUOTES)

currState ==Q3.STATE_QUOTES; */

if(currState == Q3.STATE_NORMAL)

currState = Q3.STATE_SLASH;

else if(currState == Q3.STATE_COMMENT)

currState = Q3.STATE_NORMAL;

break;

case '*':

if(currState == Q3.STATE_SLASH)

currState = Q3.STATE_COMMENT;

break;

case '"':

if(currState == Q3.STATE_NORMAL)

currState = Q3.STATE_QUOTE_DOUBLE;

if(currState == Q3.STATE_QUOTE_DOUBLE)

currState = Q3.STATE_NORMAL;

break;

*case ''':

if(currState == Q3.STATE_NORMAL)

currState = Q3.STATE_QUOTE_SINGLE;

if(currState == Q3.STATE_QUOTE_SINGLE)

currState = Q3.STATE_NORMAL;

break;*

}

if(currState != Q3.STATE_COMMENT)

System.out.print(outChar);

}

}

}

2011-06-18

Nidale

+0

我可能是错的，但这看起来像[正则表达式]的工作(http://download.oracle.com/javase/tutorial/essential/regex/) –