java高手－gpjqem1的部落格

標題:

java高手

發問:

1. 計算並顯示出123~456間所有奇數的總和2. 請寫一個程式,首先讓使用者輸入自己的學號，然後程式能將該學號反轉印出ex:92180159013. 請寫一個程式，先隨機的取得5個1~50間的整數，程式依序的顯示出最大值、最小值，並計算總和、平均值。

最佳解答:

import java.io.*; import java.util.Random; public class Average { public static void main(String[] args) throws IOException { showNumber();// Q1 BufferedReader bi = new BufferedReader(new InputStreamReader(System.in)); System.out.println("Input your student ID:"); String number = ""; number = bi.readLine(); char[] chars = number.toCharArray(); reverseNumber(chars);// Q2 calNumber();//Q3 } private static void showNumber() { int sum = 0; System.out.println("所有奇數為:"); for (int i = 123; i < 457; i++) { if (i % 2 != 0) { sum += i; System.out.print(" " + i); } } System.out.println(""); System.out.println("sum=" + sum); } private static void reverseNumber(char[] chars) { for (int i = chars.length - 1; i >= 0; i--) { System.out.print(" " + chars[i]); } System.out.println(""); } private static void calNumber() { int sum = 0, average = 0, max = 0; int[] ints = new int[5]; System.out.println("random number are: "); for (int i = 0; i < 5; i++) { ints[i] = new Random().nextInt(50) + 1; System.out.print(" " + ints[i]); } int min = ints[0]; System.out.print(" "); for (int i = 0; i < 5; i++) { if (ints[i] > max) { max = ints[i]; } else if (ints[i] < min) { min = ints[i]; } sum += ints[i]; } average = sum / 5; System.out.print("max=" + max + ",min=" + min + ",sum=" + sum + ",average=" + average); } }

其他解答:

大家好，我是該課助教請大家不要回答這個問題這個是給你們練習的還有如果不把20點給我你就準備被當掉吧