rxtern variable has an initializer
时间: 2024-04-30 19:24:31 浏览: 9
这个错误通常出现在你定义变量时,给它赋了一个初始值,但是这个变量又被定义在了函数外部,而且没有用static修饰。这会导致这个变量被定义多次,从而引起编译器的错误提示。
解决办法是将这个变量定义在函数内部,或者给它加上static修饰,避免被重复定义。例如:
```
void foo() {
static int x = 0; // 加上 static 修饰符
int y = 0; // 定义在函数内部
// ...
}
```
相关问题
cannot initialize a variable of type
I'm sorry, could you please provide more context and information about the error message you are receiving? It will be easier for me to assist you if I have more details.
Initialize the current java thread to be an STA
As an AI language model, I do not have the capability to initialize a Java thread to be an STA. However, I can provide you with some insights on how to set a Java thread as STA.
In Java, a Single Threaded Apartment (STA) is a threading model that ensures that only one thread can access a particular COM component at any given time. To initialize a Java thread to be an STA, you can use the following steps:
1. Create a new instance of the COMThread class that implements the Runnable interface.
2. Override the run() method of the Runnable interface and add the code to initialize the thread as an STA.
3. Create a new thread object and pass the instance of the COMThread class as a parameter.
4. Start the new thread object.
Here is an example code that demonstrates how to set a Java thread as STA:
import com.jacob.com.ComThread;
public class STAExample {
public static void main(String[] args) {
// Create a new instance of the COMThread class
COMThread comThread = new COMThread();
// Create a new thread object and pass the instance of the COMThread class as a parameter
Thread thread = new Thread(comThread);
// Start the new thread object
thread.start();
}
private static class COMThread implements Runnable {
@Override
public void run() {
// Initialize the thread as an STA
ComThread.InitMTA(true);
}
}
}
Note that the above code uses the JACOB library to work with COM components in Java. You can use similar libraries or APIs to initialize the thread as an STA in your Java project.