Question

java数组越界错误，我的这串代码怎么改啊？

package Homework.Demo;public class Homework04 { public static void main(String[] args) { int[] book1 = {123, 156, 187}; int[] book2 = {145, 154, 199, 201}; int[] book = new int[7]; for (int i = 0; i <7 ; i++) { if (i<=2) { book[i] = book1[i]; }else { book[i]=book2[i-3]; } } int temp=0; for (int c = 0; c <7 ; c++) { if (book[c]<book[c++]) { continue; }else{ book[c]=temp; book[c++]=temp; temp=book[c]; } System.out.print("房号"+book[c]); System.out.println("最中间的房号"+book[(book.length-1)/2]); } }}

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Answer 1

你这个下标越界是因为你最后一个循环里面有c++但是你循环最后一个角标是6，++成7所以越界，其次book[c]=temp; book[c++]=temp; temp=book[c];你这三条转换的不觉得有点奇怪吗 book[c]<book[c++]还有if里的这个判断 后面的c++是先++了在用角标去拿值了还是先拿值了再去运行++

Answer 2

从高到低遍历是i--吧