Here you can find the source of sizeOfInt(int x)
Parameter | Description |
---|---|
x | a parameter |
public static int sizeOfInt(int x)
//package com.java2s; /*//from w w w . ja v a2 s .co m * Copyright (C) 2014 fengwx.cn@gmail.com * * Licensed 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 { private final static int[] SIZE_TABLE = { 9, 99, 999, 9999, 99999, 999999, 9999999, 99999999, 999999999, Integer.MAX_VALUE }; /** * calculate the size of an integer number * * @param x * @return */ public static int sizeOfInt(int x) { for (int i = 0;; i++) if (x <= SIZE_TABLE[i]) { return i + 1; } } }