找到 34423 篇文章,关于编程
441 次查看
子表达式/元字符“\Z”匹配整个字符串的结尾,除了允许的最终换行符。示例 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main( String args[] ) { String regex = "Tutorialspoint\z"; String input = "Hi how are you welcome to Tutorialspoint"; Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; while(m.find()) { count++; } System.out.println("匹配次数: "+count); } }输出匹配次数: 1示例 ... 阅读更多
116 次查看
子表达式/元字符“\z”匹配字符串的结尾。示例 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main( String args[] ) { String regex = "Tutorialspoint\z"; String input = "Hi how are you welcome to Tutorialspoint"; Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; while(m.find()) { count++; } System.out.println("匹配次数: "+count); } }输出匹配次数: 1示例 2以下 Java 程序验证给定... 阅读更多
164 次查看
子表达式/元字符“\A”匹配整个字符串的开头。示例 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main( String args[] ) { String regex = "\AHi"; String input = "Hi how are you welcome to Tutorialspoint"; Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; while(m.find()) { count++; } System.out.println("匹配次数: "+count); } }输出匹配次数: 1示例 2以下 Java 程序接受... 阅读更多
756 次查看
子表达式/元字符“\G”匹配上次匹配结束的位置。示例import java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main( String args[] ) { String regex = "\G[0-9]"; Scanner sc = new Scanner(System.in); System.out.println("输入一个字符串: "); String input = sc.nextLine(); Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; String digits = ""; System.out.println("先前匹配中的数字:"); while(m.find()) { ... 阅读更多
488 次查看
子表达式/元字符“\D”匹配非数字。示例 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main( String args[] ) { String regex = "\D"; String input = "This is sample text 12 24 56 89 24"; Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; while(m.find()) { count++; } System.out.println("匹配次数: "+count); } }输出匹配次数: 24示例 2import java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public ... 阅读更多
166 次查看
子表达式/元字符“\d”匹配数字。示例 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main( String args[] ) { String regex = "\d 24"; String input = "This is sample text 12 24 56 89 24"; Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; while(m.find()) { count++; } System.out.println("匹配次数: "+count); } }输出匹配次数: 2示例 2以下是一个 Java 程序... 阅读更多
608 次查看
子表达式/元字符“\S”匹配非空白字符。示例 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main( String args[] ) { String regex = "\S"; String input = "Hello how are you welcome to Tutorialspoint !"; Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; while(m.find()) { count++; } System.out.println("匹配次数: "+count); } }输出匹配次数: 38示例 2import java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; ... 阅读更多
124 次查看
子表达式/元字符“\s”匹配空白字符等价物。示例 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main( String args[] ) { String regex = "\s"; String input = "Hello how are you welcome to Tutorialspoint !"; Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; while(m.find()) { count++; } System.out.println("匹配次数: "+count); } }输出匹配次数: 7示例 2以下示例读取一个字符串... 阅读更多
1K+ 次查看
子表达式/元字符“\W”匹配非单词字符。示例 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main(String args[]) { String regex = "\W!"; String input = "Hello how are you welcome to Tutorialspoint !"; Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; while(m.find()) { count++; } System.out.println("匹配次数: "+count); } }输出匹配次数: 1示例 2以下示例读取 5 个字符串值并打印包含... 阅读更多
185 次查看
子表达式/元字符“\w”匹配单词字符,即 a 到 z、A 到 Z 和 0 到 9。示例 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main( String args[] ) { String regex = "\w to"; String input = "Hello how are you welcome to Tutorialspoint"; Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; while(m.find()) { count++; } System.out.println("Number of matches: "+count); ... 阅读更多
数据结构
网络
关系数据库管理系统
操作系统
Java
iOS
HTML
CSS
Android
Python
C 编程
C++
C#
MongoDB
MySQL
Javascript
PHP