正进一步

private static <E> void (Object obj,E...varargs){
		for(E  e : varargs){
			System.out.println(e);
		}
	}

public static <E extends Enum<E>> EnumSet<E> of(E first, E... rest) {
        EnumSet<E> result = noneOf(first.getDeclaringClass());
        result.add(first);
        for (E e : rest)
            result.add(e);
        return result;
    }

package book.rpc.dubbox;

import java.util.Arrays;

public class DubboServer {


	public static void main(String[] args) {


		varargs(null,new int[]{1,2,3});


		Integer[] integers =new Integer[]{4,5,6};
		System.out.println(integers);
		int[] inta = new int[]{8,9,0};
		System.out.println(Arrays.asList(inta));
		Integer[] intb = new Integer[]{123};
		System.out.println(Arrays.asList(intb));
		
		System.out.println(Arrays.asList());
		int[] ints =new int[]{88,8,8};
		System.out.println(ints);
		System.out.println("int arr tostring:"+Arrays.toString(ints));
		//null对象，那么就会npe
		for(int i : ints){
			System.out.println(i);
		}
		varargs(1,2,3);
		varargs();
		varargs(null);

	}

	private static <E> void (Object obj,E...varargs){
		for(E  e : varargs){
			System.out.println(e);
		}
	}

	private static void (int... ints){//可变参数必须放在参数列表的最后
		for(int i : ints){
			System.out.println(i);
		}
	}
}