package com.truecaller.sdk;

import java.security.SecureRandom;

/**
 * Created by divum on 27/3/18.
 */

public class Utils {

    static final String AB = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
    static SecureRandom rnd = new SecureRandom();

    public static String randomString( int len ){
        StringBuilder sb = new StringBuilder( len );
        for( int i = 0; i < len; i++ )
            sb.append( AB.charAt( rnd.nextInt(AB.length()) ) );
        return sb.toString();
    }
}