import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexMatches { private static final String REGEX = "\\bcat\\b"; private static final String INPUT = "cat cat cat cattie cat"; public static void main( String[] args ){ Pattern p = Pattern.compile(REGEX); Matcher m = p.matcher(INPUT); // 获取 matcher 对象 int count = 0; while(m.find()) { count++; System.out.println("Match number "+count); System.out.println("start(): "+m.start()); System.out.println("end(): "+m.end()); } }
理解问题import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexMatches { private static final String REGEX = "\\bcat\\b"; private static final String INPUT = "cat cat cat cattie cat"; public static void main( String[] args ){ Pattern p = Pattern.compile(REGEX); Matcher m = p.matcher(INPUT); // 获取 matcher 对象 int count = 0; while(m.find()) { count++; System.out.println("Match number "+count); System.out.println("start(): "+m.start()); System.out.println("end(): "+m.end()); } }
已完成理解「import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexMatches { private static final String REGEX = "\\bcat\\b"; private static final String INPUT = "cat cat cat cattie cat"; public static void main( String[] args ){ Pattern p = Pattern.compile(REGEX); Matcher m = p.matcher(INPUT); // 获取 matcher 对象 int count = 0; while(m.find()) { count++; System.out.println("Match number "+count); System.out.println("start(): "+m.start()); System.out.println("end(): "+m.end()); } }」
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