The subexpression/metacharacter “\S” matches the non-white space characters.Example 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 ... Read More

The subexpression/metacharacter “\s” matches the white space equivalent.Example 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 ... Read More

The subexpression/metacharacter “\W” matches the non-word characters.Example1import 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);   ... Read More

The subexpression/metacharacter “\w” matches the word characters i.e. a to z and A to Z and 0 to 9.Example 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 = ... Read More

The subexpression/metacharacter “a| b” matches either a or b.Example 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample {    public static void main( String args[] ) {       String regex = "Hello|welcome";       String input = "Hello how are you welcome to Tutorialspoint";       Pattern ... Read More

The subexpression/metacharacter “re{ n, m}” matches at least n and at most m occurrences of the preceding expression.Example 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample {    public static void main( String args[] ) {       String regex = "xyy{2, 4}";       String input = "xxyyzxxyyyyxyyzxxyyzz"; ... Read More

The subexpression/metacharacter “re{ n}” matches exactly n number of occurrences of the preceding expression.Example 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample {    public static void main( String args[] ) {       String regex = "to{1}";       String input = "Welcome to Tutorialspoint";       ... Read More

The subexpression/metacharacter “re+” matches one or more occurrences of the preceding expression.Example 1import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample {    public static void main( String args[] ) {       String regex = "aabc+";       String input = "aabcabcaabcabbcaabcbcaabc";       Pattern p = Pattern.compile(regex); ... Read More

The subexpression/metacharacter “\z” matches the end of a string.Example1import 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 ... Read More

The subexpression/metacharacter “\Z” matches the end of the entire string except allowable final line terminator.Example 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 ... Read More