標籤:public int findLast(int[] x, int y){ //Effects:If X==null thro NullPointerException //else return the index of the last element //in x that equals y. //If no such element exists, return -1 for(int i=x.length-1; i> 0;i--)
標籤:第二次作業對於以下兩個程式1、找出fault2、如果可能的話,找出一個測試案例不執行fault3、如果可能的話,找出一個測試案例執行fault,但是不產生error4、如果可能的話,找出一個測試案例產生error,但是不會導致failurepublic intfindLast(int[] x, inty) {//Effects: If x==null throw NullPointerException// else return the index of the last
標籤:1)瞭解錯誤類型:Fault : A static defect in the software.【一個靜態在軟體中產生的錯誤。】 Failure : External, incorrect behavior with respect to the requirements or other description of the expected behavior.【外部的表現,不正確的行為,相對於預期的行為的要求或其他描述。】 Error : An
標籤:public int findLast (int[] x, int y) { //Effects: If x==null throw NullPointerException // else return the index of the last element // in x that equals y. // If no such element exists, return -1 for (int i=x.length-1; i > 0; i--) { if (x[i] ==
標籤:程式思想:1.定義數組儲存隨機數,2.while 迴圈30次3.第一個判斷奇偶,奇數則為整數運算,偶數為假分數運算,4.然後為運算項,然後將隨機數除以四,分別為加減乘除。5.進行判斷是否重複,不重複則儲存並輸出。代碼:#include<iostream>using namespace std;#include<time.h>void main(){ int n
標籤:作業題目: Briefly describe an error from your past projects that you have recently completed or an error from other projects which impress you most. State the reason, impact of the error and how did you find
標籤:設計思路:1.產生兩個隨機數,因為要支援分數,設定隨機數的範圍為0~200,當隨機數在0~99之間時,該隨機數作為運算數輸出。當隨機數大於100時,由系統再次產生兩個隨機數組成分數,為了方便計算分子設定範圍為0~20,分母設定範圍為2~20。2.產生一個隨機數作為符號,該隨機數範圍為1~4的整數,分別對應加減乘除。3.判斷產生的數是分數還是整數然後輸出式子。代碼:package 四則運算;public class 四則運算 { public static void
標籤:作業題目:A project is a collection of coordinated work activities conducted within a specific time frame that utilizes resources to achieve specified objectives.– Briefly describe a project from your personal life that you have recently