【说站】java setPriority()设置优先级

public final void setPriority(int newPriority) {
    this.checkAccess();
    if (newPriority <= 10 && newPriority >= 1) {
        ThreadGroup g;
        if ((g = this.getThreadGroup()) != null) {
            if (newPriority > g.getMaxPriority()) {
                newPriority = g.getMaxPriority();
            }
 
            this.setPriority0(this.priority = newPriority);
        }
 
    } else {
        throw new IllegalArgumentException();
    }
}