(12)正则
正则
java.util.regex.Pattern
1、类结构
public final class Pattern
implements java.io.Serializable
2、重要属性
private String pattern;
3、构造方法
private Pattern(String p, int f) {
pattern = p;
flags = f;
// to use UNICODE_CASE if UNICODE_CHARACTER_CLASS present
if ((flags & UNICODE_CHARACTER_CLASS) != 0)
flags |= UNICODE_CASE;
// Reset group index count
capturingGroupCount = 1;
localCount = 0;
if (pattern.length() > 0) {
try {
compile();
} catch (StackOverflowError soe) {
throw error("Stack overflow during pattern compilation");
}
} else {
root = new Start(lastAccept);
matchRoot = lastAccept;
}
}
4、API
public static boolean matches(String regex, CharSequence input) {
Pattern p = Pattern.compile(regex);
Matcher m = p.matcher(input);
return m.matches();
}
java.lang.regex.Matcher
1、类结构
public final class Matcher implements MatchResult {
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