单选题类Teacher： class Teacher{ String name； float salary； Teacher（String name）{ this.name = name； } Teacher（String name，float salary）{ this.name = name； this.salary = salary； } } 执行语句Teacher t = new Teacher（“Tom”，2000.0f）；后，字段salary的值是哪一项？（）A 2000.0fB 0.0fC null；D 2000
单选题
类Teacher： class Teacher{ String name； float salary； Teacher（String name）{ this.name = name； } Teacher（String name，float salary）{ this.name = name； this.salary = salary； } } 执行语句Teacher t = new Teacher（“Tom”，2000.0f）；后，字段salary的值是哪一项？（）
A
2000.0f
B
0.0f
C
null；
D
2000
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