java 线程，怎么写个死锁的程序

把后面的同步放到前面的同步里

synchronized (o1) {

try {

Thread.sleep(1)

} catch (InterruptedException e) {

e.printStackTrace()

}

synchronized (o2) {

System.out.println("1")

}

}

#include <windows.h>

#include <iostream>

#include<time.h>

const unsigned short SIZE_OF_BUFFER = 1//缓冲区长度

int g_buffer[SIZE_OF_BUFFER]

bool g_continue = true//控制程序结束

HANDLE g_hMutex//用于线程间的互斥

DWORD WINAPI FatherProc(LPVOID)//父进程线程

DWORD WINAPI SonProc(LPVOID)//使用打印机的线程

int main()

{

//创建各个互斥信号

g_hMutex = CreateMutex(NULL,FALSE,NULL)

const unsigned short FATHERS_COUNTS = 1//父进程线程的个数

const unsigned short SONS_COUNT = 2//使用打印机的线程的个数

//总的线程数

const unsigned short THREADS_COUNT = FATHERS_COUNTS+SONS_COUNT

HANDLE hThreads[THREADS_COUNT]//各线程的handle

DWORD fatherID[FATHERS_COUNTS]//父进程线程的标识符

DWORD sonID[SONS_COUNT]//使用打印机的线程的标识符

//父进程线程

for (int i=0i<FATHERS_COUNTS++i){

hThreads[i]=CreateThread(NULL,0,FatherProc,NULL,0,&fatherID[i])

if (hThreads[i]==NULL) return -1

}

//使用打印机的线程

for (i=0i<SONS_COUNT++i){

hThreads[SONS_COUNT+i]=CreateThread(NULL,0,SonProc,NULL,0,&sonID[i])

if (hThreads[i]==NULL) return -1

}

while(g_continue){

if(getchar())

{ //按回车后终止程序运行

g_continue = false

}

}

return 0

}

//分配打印机

void Append()

{

srand((unsigned)time(0))

std::cerr <<"打印机空闲 ...\n"

if(rand()%2)

{

g_buffer[0]=1//给PA

}

else

{

g_buffer[0]=0//给PB

}

}

//son使用打印机

void Take()

{

if(g_buffer[0]==1)

{

std::cerr <<"PA使用打印机 ... "

std::cerr <<"成功" <<std::endl<<std::endl

}

if(g_buffer[0]==0)

{

std::cerr <<"PB使用打印机 ... "

std::cerr <<"成功" <<std::endl<<std::endl

}

g_buffer[0]=-1

}

//父进程

DWORD WINAPI FatherProc(LPVOID lpPara)

{

while(g_continue){

WaitForSingleObject(g_hMutex,INFINITE)

Append()

Sleep(1500)

ReleaseMutex(g_hMutex)

}

return 0

}

//子进程

DWORD WINAPI SonProc(LPVOID lpPara)

{

while(g_continue){

WaitForSingleObject(g_hMutex,INFINITE)

Take()

Sleep(1500)

ReleaseMutex(g_hMutex)

}

return 0

} 最后的要求自己添加

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