99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

多項選擇題

Which two methods, inserted  individually, correctly complete the Three class?()

A.public void foo(){ }
B.public int foo(){return 3;}
C.public Two foo(){return this;}
D.public One foo(){return this;}
E.public Object foo(){return this;}

微信掃碼免費搜題