Java编写代码过程中遇到了一个问题，main方法中创建内部类的实例时，编译阶段出现错误，查看错误描述： Multiple markers at this line - The value of the local variable test is not used - No enclosing instance of type StaticCallDynamic is accessible. Must qualify the allocation with an enclosing instance of type StaticCallDynamic (e.g...

public class passwordVerify { public static void main(String[] args) { // TODO Auto-generated method stub verify(); } public static void verify() { String originalUserName = "cs1053283896@gmail.com" ; //账号密码信息 String originalUserPassword = "123456789" ; Scanner myscanner = new...

public static void main(String[] args) { // TODO Auto-generated method stub String aString = "hellocensi @gmail.com " ; System.out.println(aString); int lenthString=aString.length(); System.out.println("way1："+lenthString);//常用方法1：获取字符串长度 char str[]=aString.toCharArray(); //常用方法2 :...

#include<stdio.h> #include<stdlib.h> #define N 13 //总人数 typedef struct Node { int Data; struct Node *Next; }List,*Position; Position Create(void); Position Delete(Position Head,Position P); Position Deal(Position Head); void Traverse(Position Head); int main() //测试 { P...

public static void main(String[] args) { double sprt20=Math.sqrt(20); sprt20=(float)Math.round(sprt20*10000)/10000.0; //关键:10^n,n表示小数点后位数，且后面的10^n须带一位小数点 System.out.print(sprt20); } 结果：4.4721

#include<iostream> #include<cstdlib> using namespace std; #define RED 1 #define BLACK 0 typedef struct TreeNode { int Element; int Color; TreeNode *Parent; TreeNode *Left; TreeNode *Right; TreeNode() { Color=BLACK; //let initial node become black } }*MyRBTree; MyRBTree ...