Here you can find the source of roundUp(int ndigits)
public static int roundUp(int ndigits)
//package com.java2s; /**/* w w w .j a va 2s .c om*/ * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { public final static int MAX_DIGITS = 9; public static int roundUp(int ndigits) { return (ndigits + MAX_DIGITS - 1) / MAX_DIGITS; } }