下述代碼執(zhí)行后,有幾個(gè)引用變量和幾個(gè)對(duì)象?()
對(duì)象聲明Student stu(對(duì)象)= new Student(“Mike”);
對(duì)象定義(開辟空間)
Student stua;(聲明變量)
Stua = stu;
A. 2個(gè)引用變量,1個(gè)對(duì)象
B. 1個(gè)引用變量,1個(gè)對(duì)象
C. 2個(gè)引用變量,2個(gè)對(duì)象
D. 1個(gè)引用變量,2個(gè)對(duì)象