关于java的正则表达式的用法

can_do

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java regexp

import java.util.regex.*;

public class Test {
public static void main (String[] params) {
 System.out.println("hello,can_do");
 String strOriginal ="<bd></bd>efa@ade#cv<Brddd><pddd><brdd> <dd></sm></pde></bde>sea";

 //String result = strOriginal.replaceAll("<*>", "7");
 //String result = strOriginal.replaceAll("<*>", "9");
 //String result = strOriginal.replaceAll("<*>", "9");
 //String result = strOriginal.replaceAll("[^/^$/_/^$/_/^$/_/^$/_/^ $/_/^ $/_/^ $/_/^ $/]", "8");
 //String result = strOriginal.replaceAll("[^|||| || || | ||]", "8");
 //String result = strOriginal.replaceAll("|||| || || | ||", "8");
 //String result = strOriginal.replaceAll("[()()()()( )()( )()( )( )()()]", "8");

 //String result = strOriginal.replaceAll("<*>", "8");
 //String result = strOriginal.replaceAll("<*>", "8");
 // String result = strOriginal.replaceAll("<*>", "0");
 strOriginal = strOriginal.replaceAll("","");
 System.out.println("=strOriginal is:="+strOriginal+"=1=end=");
 strOriginal = strOriginal.replaceAll("(<*>)","!");
 System.out.println("=strOriginal is:="+strOriginal+"=2=end=");
 strOriginal = strOriginal.replaceAll("(<*>)","@");
 System.out.println("=strOriginal is:="+strOriginal+"=3=end=");
 strOriginal = strOriginal.replaceAll("(<*>)","#");
 System.out.println("=strOriginal is:="+strOriginal+"=4=end=");
 strOriginal = strOriginal.replaceAll("(<");
 System.out.println("=strOriginal is:="+strOriginal+"=5=end=");

 //strOriginal= strOriginal.replaceAll("<*>", "2");
 //String result = strOriginal.replaceAll("(<*>)", "2");
 //String result = strOriginal.replaceAll("<*>", "0");

 String result = strOriginal.replaceAll("[^!@#%]", "2");

 result = result.replaceAll("!"," ");
 result = result.replaceAll("@","");
 result = result.replaceAll("#","");
 result = result.replaceAll("%","");
 System.out.println("=strOriginal is:="+strOriginal+"=end=");
 System.out.println("=result is:="+result+"=end=");

 //查找以Java开头,任意结尾的字符串
 Pattern pattern = Pattern.compile("^Java.*");
 Matcher matcher = pattern.matcher("Java就是说！");
 boolean b= matcher.matches();
 //当条件满足时，将返回true，否则返回false
 System.out.println("=b is:="+b+"=end=");

 Test.reserveSpecialHtmlTag("<bd></bd>efa@ade#cv<Brddd><pddd><brdd> <dd></sm></pde></bde>sea");
}

public static String reserveSpecialHtmlTag (String paramStr) {
String result = "";
String strSubstituted = "";
if (paramStr == null || paramStr.trim().length()==0)
{
 return result;
}
paramStr = paramStr.trim().replaceAll("","");
paramStr = paramStr.replaceAll("(<*>)","!");
paramStr = paramStr.replaceAll("(<*>)","@");
paramStr = paramStr.replaceAll("(<*>)","#");
paramStr = paramStr.replaceAll("(<");

result = paramStr.replaceAll("[^!@#%]", strSubstituted);

result = result.replaceAll("!"," ");
result = result.replaceAll("@","");
result = result.replaceAll("#","");
 result = result.replaceAll("%","");

 System.out.println("=result is:="+result+"=end=");
return result;

}//end of method reserveSpecialHtmlTag

}

【编写于 2009-01-22】

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