is Integer Negative by Regex - Java java.util.regex

Java examples for java.util.regex:Match Number

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Description

is Integer Negative by Regex

Demo Code


//package com.java2s;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {

    public static final String INTEGER_NEGATIVE = "^-[1-9]\\d*$";

    public static boolean isINTEGER_NEGATIVE(String str) {
        return Regular(str, INTEGER_NEGATIVE);
    }/*from  w ww. j  a  v  a2  s .c om*/

    private static boolean Regular(String str, String pattern) {
        if (null == str || str.trim().length() <= 0)
            return false;
        Pattern p = Pattern.compile(pattern);
        Matcher m = p.matcher(str);
        return m.matches();
    }
}

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