Java tutorial
//package com.java2s; //License from project: Apache License import java.util.*; public class Main { public static String longListToString(List<Long> list) { StringBuilder stringBuilder = new StringBuilder(); stringBuilder.append("["); for (int valuesIndex = 0; valuesIndex < list.size(); valuesIndex++) { long value = list.get(valuesIndex); stringBuilder.append("0x"); stringBuilder.append(Long.toHexString(value).toUpperCase()); if (valuesIndex != list.size() - 1) { stringBuilder.append(", "); } } stringBuilder.append("]"); return stringBuilder.toString(); } }