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向线程传参数#include #include #include using namespace std; #define NUM_THREADS 5 struct thread_data{ int thread_id; char *message;}; void *PrintHello(void *threadarg){ struct t

068#include #include using namespace std; // 声明一个结构体类型 Books struct Books{ char title[50]; char author[50]; char subject[100]; int book_id;}; int main( ){ Books Book1

071#include using namespace std; class printData { public: void print(int i) { cout << "Printing int: " << i << endl; } void print(double f) { cout << "Pr

C++ 二元运算符重载#include using namespace std; class Box{ double length; // 长度 double breadth; // 宽度 double height; // 高度public: double getVolume(void) { return l

C++ 关系运算符重载#include using namespace std; class Distance{ private: int feet; // 0 到无穷 int inches; // 0 到 12 public: // 所需的构造函数 Distance(){

C++ 输入/输出运算符重载#include using namespace std; class Distance{ private: int feet; // 0 到无穷 int inches; // 0 到 12 public: // 所需的构造函数 Distance(){

C++  ++ 和 -- 运算符重载#include using namespace std; class Time{ private: int hours; // 0 到 23 int minutes; // 0 到 59 public: // 所需的构造函数 Time(){

C++ 赋值运算符重载#include using namespace std; class Distance{ private: int feet; // 0 到无穷 int inches; // 0 到 12 public: // 所需的构造函数 Distance(){

C++ 函数调用运算符 () 重载#include using namespace std; class Distance{ private: int feet; // 0 到无穷 int inches; // 0 到 12 public: // 所需的构造函数 Distance()

065#include using namespace std;class Box{ public: static int objectCount; // 构造函数定义 Box(double l=2.0, double b=2.0, double h=2.0) { cout <<"Constructor cal

062#include using namespace std;class Box{ public: // 构造函数定义 Box(double l=2.0, double b=2.0, double h=2.0) { cout <<"Constructor called." << endl; length

public class VarargsDemo { public static void main(String args[]) { // 调用可变参数的方法 printMax(34, 3, 3, 2, 56.5); printMax(new double[]{1, 2, 3}); } public static voi

finalize() 方法它在对象被垃圾收集器析构(回收)之前调用public class FinalizationDemo { public static void main(String[] args) { Cake c1 = new Cake(1); Cake c2 = new Cake(2); Cake c3 = new Cake

输入import java.io.*; public class BRRead { public static void main(String args[]) throws IOException { char c; // 使用 System.in 创建 BufferedReader BufferedReader br = new BufferedRea

047#include using namespace std; class Box{ public: double length; // 长度 double breadth; // 宽度 double height; // 高度}; int main( ){ Box Box1; // 声明 Box1，

050#include using namespace std; class Box{ public: double length; void setWidth( double wid ); double getWidth( void ); private: double width;}; // 成员函数定义d

053#include#includeusing namespace std;class A{public: int a; A(){ a1 = 1; a2 = 2; a3 = 3; a = 4; } void fun(){ cout << a << endl; //正确 cout << a1 << endl; /

056#include using namespace std; class Line{ public: void setLength( double len ); double getLength( void ); Line(double len); // 这是构造函数 private: double length

059#include using namespace std; class Line{ public: int getLength( void ); Line( int len ); // 简单的构造函数 Line( const Line &obj); // 拷贝构造函数 ~Line();

C++ 下标运算符 [] 重载#include using namespace std;const int SIZE = 10;class safearay{ private: int arr[SIZE]; public: safearay() { register int i; for(i = 0

C++ 类成员访问运算符 -> 重载#include #include using namespace std;// 假设一个实际的类class Obj { static int i, j;public: void f() const { cout << i++ << endl; } void g() const { cout << j++ << endl; }

命名空间#include using namespace std; // 第一个命名空间namespace first_space{ void func(){ cout << "Inside first_space" << endl; }}// 第二个命名空间namespace second_space{ void func(){ cou

#include using namespace std; // 第一个命名空间namespace first_space{ void func(){ cout << "Inside first_space" << endl; }}// 第二个命名空间namespace second_space{ void func(){ cout << "

函数模板#include #include using namespace std; template inline T const& Max (T const& a, T const& b) { return a < b ? b:a; } int main (){ int i = 39; int j = 20; cout << "M

类模版#include #include #include #include #include using namespace std; template class Stack { private: vector elems; // 元素 public: void push(T const&); // 入栈 void

#include #include using namespace std; void signalHandler( int signum ){ cout << "Interrupt signal (" << signum << ") received.\n"; // 清理并关闭 // 终止程序 exit(signum); } in

预处理器#include using namespace std;#define DEBUG #define MIN(a,b) (((a)<(b)) ? a : b) int main (){ int i, j; i = 100; j = 30;#ifdef DEBUG cerr <<"Trace: Inside main function" << en

C++多线程#include // 必须的头文件是#include using namespace std; #define NUM_THREADS 5 // 线程的运行函数void* say_hello(void* args){ cout << "Hello Runoob！" << endl;} int main(){ // 定义线程的 id 变

5个线程#include #include #include using namespace std; #define NUM_THREADS 5 void *PrintHello(void *threadid){ // 对传入的参数进行强制类型转换，由无类型指针变为整形数指针，然后再读取 int tid = *((int*)threadid);

对象的动态内存分配#include using namespace std; class Box{ public: Box() { cout << "调用构造函数！" <<endl; } ~Box() { cout << "调用析构函数！" <<endl; }}; int main(

三维数组#include using namespace std; int main(){ int i,j,k; // p[2][3][4] int ***p; p = new int **[2]; for(i=0; i<2; i++) { p[i]=new int *[3]; for(

C++ 多态#include using namespace std; class Shape { protected: int width, height; public: Shape( int a=0, int b=0) { width = a; height = b; }

Ｃ＋＋数据抽象#include using namespace std; class Adder{ public: // 构造函数 Adder(int i = 0) { total = i; } // 对外的接口 void addNum(int number) {

C++数据封装#include using namespace std; class Adder{ public: // 构造函数 Adder(int i = 0) { total = i; } // 对外的接口 void addNum(int number) {

C++接口#include using namespace std; // 基类class Shape {public: // 提供接口框架的纯虚函数 virtual int getArea() = 0; void setWidth(int w) { width = w; } void setHeight(int h) {

C++文件和流#include #include using namespace std; int main (){ char data[100]; // 以写模式打开文件 ofstream outfile; outfile.open("afile.dat"); cout << "Writing to the file" << endl

C++异常处理#include using namespace std; double division(int a, int b){ if( b == 0 ) { throw "Division by zero condition!"; } return (a/b);} int main (){ int x = 50; int

C++定义新的异常#include #include using namespace std; struct MyException : public exception{ const char * what () const throw () { return "C++ Exception"; }}; int main(){ try {

new和delete运算符#include using namespace std; int main (){ double* pvalue = NULL; // 初始化为 null 的指针 pvalue = new double; // 为变量请求内存 *pvalue = 29494.99; // 在分配的地址存储值 cout << "Va

public class TestPassByValue { public static void main(String[] args) { int num1 = 1; int num2 = 2; System.out.println("交换前 num1 的值为：" + num1 + " ，num2 的值为：" + num2); // 调用swap方