標籤: 1 public int findLast(int[] x, int y){ 2 //Effects:If X==null thro NullPointerException 3 //else return the index of the last element 4 //in x that equals y. 5 //If no such element exists, return -1 6 for(int i=x.length-1;
標籤: 作業一 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;
標籤: (1)findLastpublic int findLast (int[] x, int y) { //Effects: If x==null throwNullPointerException// else return the index of the last element // in x that equals y.// If no such element exists, return -1for (int i=x.length-1;
標籤:Fault的定義:可能導致系統或功能失效的異常條件(Abnormal condition that can cause an element or an item tofail.),可譯為“故障”。Error的定義:計算、觀察或測量值或條件,與真實、規定或理論上正確的值或條件之間的差異(Discrepancy between a computed, observed or measured value or condition and the true,
標籤:課後1.2節練習第三題第一段程式: (a) for 迴圈沒有遍曆數組第一個元素,即第0號元素,改正為for ( int i = x.length - 1; i >= 0 ; i -- ) {...} (b) 如果想要不執行故障就拋出一個null 指標錯誤,那麼如果x數組為空白即可。給出一組可能的測試案例 x == null ; y == 1; 期望的輸出:NullPointerException; 實際的輸出:NullPointerException; (c)
標籤:設計思想:1.裡用隨機數產生函數產生4個隨機數2.中間隨機數加工,除4取餘,0,1,2,3分別代表加減乘除.最後一個隨機數除2取餘,0代表整數,1代表假分數3.當產生除法判斷除數不為04.隨機題目產生,迴圈30道題目5.輸出來源程式代碼: #include<iostream>using namespace std;#include<time.h>struct yunsuan{ int fuhao; int one;