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Validate the ZIP code with Java Regular expressions
In order to match the ZIP code 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 which validates the ZIP code with Java Regular Expressions −
Example
public class Example {
public static void main( String[] args ) {
System.out.println(zipIndia("400709"));
System.out.println(zipUS("10060"));
}
// validate zip
public static boolean zipIndia( String z ) {
return z.matches( "\d{6}" );
}
public static boolean zipUS( String z ) {
return z.matches( "\d{5}" );
}
}Output
true true
Updated on: 25-Jun-2020
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