public boolean nextEvents() { int kk = k / 2; if (current < n) { for (int j = 1; j <= kk; j++) { int jj = (current + j) % n; if (random.nextDouble() < beta) { delEdge(edgeId(current, jj)); int newTarget = chooseNewNode(current, jj); String edgeId = edgeId(current, newTarget); if (internalGraph.getEdge(edgeId) == null) addEdge(edgeId, nodeId(current), nodeId(newTarget)); } } current += 1; return true; } else { return false; } }