Java Regular Expression Digit Only

Chapter: Regular Expression Last Updated: 14-12-2016 19:23:55 UTC

Program:

            /* ............... START ............... */
                
public class JavaDigitOnly {

	public static boolean isNumber(String string) {
		return string.matches("^\\d+$");
	}

	public static void main(String[] args) {
		System.out.println(isNumber("123"));
	}

}
                /* ............... END ............... */
        

Output

true

Tags

Regular Expression Digit Only, Java, Regular Expression

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