is string containing Double number - Android java.lang

Android examples for java.lang:Double

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Description

is string containing Double number

Demo Code

import android.util.Log;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main{

    public static boolean isDouble(String str) {
        Pattern pattern = Pattern.compile("^[-\\+]?[.\\d]*$");
        return pattern.matcher(str).matches();
    }/*from   ww w.  j  a v  a  2  s  .co  m*/

}

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