Q:

阅读下列代码片段 class InterestTest________ActionListener{public void actionPerformed (ActionEvent event) {double interest = balance * rate/100;balance += interest;number Format format =Number Format.getCurrencyInstance ();System.out.printlb{"balance = "+Formatter.format (balance)};}private double rate; } 在下划线处,应填的正确选项是:

A .Implementation


B .Inneritance


C .implements


D .extends

对0人提供帮助

正确答案:C