小编Lea*_*th2的帖子

码:

const char* const* const* foo(int bar);

我已经看过双锥体,之前也阻止了指针的修改.我第一次见到生命中的三重常数.想知道它的用途是什么.

我刚刚学习了java,但是根据我从C++中获得的旧经验,我认为我可以编写一个命令行计算器,它只需要一行支持所有4个基本操作符.但我有一点问题.

这是我的代码:

import java.util.Scanner;

public class omg {
    public static void main(String args[]) {
        int fnum,snum,anum = 0;
        String strtype; //The original calculation as string
        char[] testchar; //Calculation as chararray
        char currentchar; //current char in the char array for the loop
        int machinecode = 0; //Operator converted to integer manually
        String tempnumstr; //first and second numbers temp str to be converted int
        int operatorloc = 0; //operator location when found
        char[] tempnum = new char[256];
        Scanner scan = new Scanner(System.in); …