题目:关于以下程序,其编译和运行结果为() class Base{ public Base(){ System.out.print("B"); } } public class TestDemo extends Base{ int m=1; public TestDemo(){ System.out.println("A"); } public static void main(String args[]){ TestDemo t = new TestDemo(); } }
A. A
B. AB
C. BA
D. BB
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