Regular Expressions with String Class
If all you want to do with a regular expression is check to see whether a string matches a pattern, you can use the matches( ) method of the String class. This method accepts a regular expression as a parameter and returns a boolean that indicates whether or not the string matches the pattern.
Program
You can also use the split method to split a string into an array of String objects based on delimiters that match a regular expression. For example, in the following program, a string is split into three words marked by spaces.
Program
public class Javaapp {
public static void main(String[] args) {
String str = new String("Java Programming Tutorial");
boolean b = str.matches(".*Programming.*");
System.out.println(b);
}
}
Program Source
public class Javaapp {
public static void main(String[] args) {
String str = new String("Java Programming Tutorial");
String strs[] = str.split("\\s+");
for(String st : strs)
System.out.println(st);
}
}