java修饰符

1.protected 不能修饰类

public class NewTreeSet2 extends NewTreeSet{

	NewTreeSet2 nts = new NewTreeSet2();
	nts.count();
}



//protected 不能修饰 class

protected class NewTreeSet{
	void  count(){
		for(int i = 0; i < 7; i++, i++ ){
			System.out.println(i+" ");
		}
		
	}
}