}if(sb.length() ==0)throwerror("named capturing group has 0 length name");if(ch !='>')throwerror("named capturing group is missing trailing '>'");returnsb.toString(); } 这样就可以使用我们自己Pattern类了,最后成功运行 publicclassMyTest{publicstaticvoidmain(String[] args){Patternpattern=P...
}if(sb.length() ==0)throwerror("named capturing group has 0 length name");if(ch !='>')throwerror("named capturing group is missing trailing '>'");returnsb.toString(); } 这样就可以使用我们自己Pattern类了,最后成功运行 publicclassMyTest{publicstaticvoidmain(String[] args){Patternpattern=P...
1.正则表达式有Group功能。 import java.util.regex.Matcher; import java.util.regex.Pattern; class HelloWorld { public static void main(String args[]){ String checkRE = "^([a-zA-Z0-9])+@([a-zA-Z0-9\\.]+)$"; Pattern ptn = Pattern.compile(checkRE); Matcher matStr = ptn.matcher("...
compile(P_NAMED); Matcher matcher = pattern.matcher(DATE_STRING); matcher.find(); System.out.printf("\n===使用名称获取==="); System.out.printf("\nmatcher.group(0) value:%s", matcher.group(0)); System.out.printf("\n matcher.group('year') value:%s", matcher.group("year")); Sys...
Group zero always stands for the entire expression. Capturing groups are so named because, during a match, each subsequence of the input sequence that matches such a group is saved. The captured subsequence may be used later in the expression, via a back reference, and may also be retrieved...
group(0)相当于m.group()。 public String group(String name) #返回被给定的 named-capturing group之前匹配操作中的输入序列。在捕获组中设置了名称,向后引用的时候便可以直接调用该名称进行捕获调用 groupCount public int groupCount() #返回捕获组在这匹配的模式数。 组零表示的是整个模式的约定。它不包括在...
java.util.regex.Pattern.namedGroups() 20 キャプチャリング・グループ名からグループ番号への変更不可能なマップを返します。 java.util.regex.Pattern.splitWithDelimiters(CharSequence, int) 21 このパターンの一致を囲む入力シーケンスを分割し、文字列と一致するデリミタの両方を返します。
Pattern PatternSyntaxException PBEKey PBEKeySpec PBEParameterSpec PDLOverrideSupported Permission Permission PermissionCollection Permissions PERSIST_STORE PersistenceDelegate PersistentMBean PGPData PhantomReference Pipe Pipe.SinkChannel Pipe.SourceChannel PipedInputStream PipedOutputStream ...
{publicstaticvoidmain(String[]args){Stringinput="Hello, my name is John Doe. I live in New York.";Stringregex="(\\w+)";Patternpattern=Pattern.compile(regex);Matchermatcher=pattern.matcher(input);while(matcher.find()){Stringgroup=matcher.group();System.out.println("Matched group: "+group...
headers="matches backref back_nth">Whatever the nth capturing group matched \k<name> Whatever the named-capturing group "name" matched. Only available for API 26 or above Quotation \ Nothing, but quotes the following