match not negative float by regex - Android java.util.regex

Android examples for java.util.regex:Numeric Pattern

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Description

match not negative float by regex

Demo Code


//package com.java2s;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {

    private static final String V_UN_NEGATIVE_FLOAT = "^(-([1-9]\\d*.\\d*|0.\\d*[1-9]\\d*))|0?.0+|0$";

    public static boolean Un_negative_float(String value) {
        return match(V_UN_NEGATIVE_FLOAT, value);
    }/*from w ww . j a va2s. c  o  m*/

    private static boolean match(String regex, String str) {
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(str);
        return matcher.matches();
    }
}

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