找不到或无法加载主类错误

代码如下
public class SyncThread implements Runnable {
public static void main(String[] args) {
System.out.println(“this is”+ count);
}
private static int count;
public SyncThread() {
count = 0;
}
public void run() {
synchronized (this) {
for (int i = 0; i < 5; i++) {
try {
System.out.println(Thread.currentThread().getName() + “:”
+ (count++));
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
public int getCount() {
return count;
}
}
是在myeclips中写的，运行后就报错误: 找不到或无法加载主类 newa.SyncThread。不是环境变量的问题，是和debug和release调试方法有关吗，小弟对这两种调试方法不是很懂，望各位解惑。

解决方案

朋友你的main方法放外面吧，然后调用线程

public class SyncThread implements Runnable {
    private static int count;
    public SyncThread() {
        count = 0;
    }
    public void run() {
        synchronized (this) {
            for (int i = 0; i < 5; i++) {
                try {
                    System.out.println(Thread.currentThread().getName() + ":"
                            + (count++));
                    Thread.sleep(100);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    public int getCount() {
        return count;
    }
}
class test {
    public static void main(String[] args) {
        SyncThread s = new SyncThread();
        s.run();
    }
}