Java Regex Number Validate isNumber(String value)

Description

Check if the value is a digit

License

BSD License

Parameter

Parameter	Description
value	value expected

Return

the test result

Declaration

public static boolean isNumber(String value) 

Method Source Code

//package com.java2s;
//License from project: BSD License 

import java.util.regex.Pattern;

public class Main {
    /**/*from   w  w w  .  ja  va 2 s .c  o m*/
     * Check if the value is a digit
     * @param value value expected
     * @return the test result
     */
    public static boolean isNumber(String value) {
        return Pattern.matches("[0-9].*", value);
    }
}

Related

1. isNumber(String str)
2. isNumber(String str)
3. isNumber(String str)
4. isNumber(String str)
5. isNumber(String str, String sign)
6. isNumber(String value)
7. isNumber(String value)
8. isNumber_Lowerletter_Underline(String str)
9. isNumberForLength(String numStr, int length)