Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import android.util.Base64;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.UUID;

public class Main {
    public static String generateShortUuid() {
        UUID uuid = UUID.randomUUID();
        MessageDigest md = null;
        try {
            md = MessageDigest.getInstance("SHA-256");
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
            return uuid.toString();
        }

        md.update(uuid.toString().getBytes());
        byte[] digest = md.digest();

        return Base64.encodeToString(digest, Base64.URL_SAFE | Base64.NO_WRAP | Base64.NO_PADDING).substring(0, 20);
    }
}