Java tutorial
//package com.java2s; //License from project: Apache License import android.text.TextUtils; import java.util.Collections; import java.util.HashSet; import java.util.Set; public class Main { public static final String COMMA = ","; /** * byte[] convert to set */ public static Set<String> byteConvertToSet(byte[] blob, String separate) { if (blob == null) { return null; } if (blob.length == 0) { return Collections.EMPTY_SET; } String sp = TextUtils.isEmpty(separate) ? COMMA : separate; String values = new String(blob); String[] sV = values.split(sp); Set<String> set = new HashSet<>(); for (String v : sV) { set.add(v); } return set; } }