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Validate Phone with Java Regular Expressions
In order to match the phone using regular expression, we use the matches method in Java. The java.lang.String.matches() method returns a boolean value which depends on the matching of the String with the regular expression.
Declaration − The java.lang.String.matches() method is declared as follows −
public boolean matches(String regex)
Let us see a program to validate a phone number with regular expressions −
Example
public class Example {
public static void main( String[] args ) {
System.out.println(phone("+91 1023456789"));
}
// validate zip
public static boolean phone( String z ) {
return z.matches("\+[0-9]*\s+\d{10}" );
// taking an assumption that a phone number is of ten digits
}
}Output
true
Updated on: 25-Jun-2020
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