單項(xiàng)選擇題

類Teacher: class Teacher{  
String name; float salary; 
Teacher(String name){   
this.name = name; } 
Teacher(String name,float salary){  
this.name = name;   
this.salary = salary; } } 
執(zhí)行語句Teacher t = new Teacher(“Tom”,2000.0f);后,字段salary的值是哪一項(xiàng)?()  

A. 2000.0f
B. 0.0f
C. null;
D. 2000

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