<?php
$numbers = $objectWrappers->wrap($arrays->arrayOf($plugins->loadClass("java.lang.Long"), 1, 2, 3, 4, 5));
// 计算累积和, 累积和: [0, 1, 3, 6, 10, 15]
$numbers->runningFold(0, function ($acc, $element) {
    return $acc + $element;
})->forEach(function ($it) use ($console) {
    $console->log($it);
});