问题:
现有:
class TestA {
public void start() { System.out.println("TestA"); } }
public class TestB extends TestA {
public void start() { System.out.println("TestB"); } public static void main (string[] args) ( ((TestA)new TestB()).start(); ) }
运行结果是哪项?()
A . TeStA
B . TeStB
C . 编译失败
D . 运行时抛出异常
现有:
class TestA {
public void start() { System.out.println("TestA"); } }
public class TestB extends TestA {
public void start() { System.out.println("TestB"); } public static void main (string[] args) ( ((TestA)new TestB()).start(); ) }
运行结果是哪项?()
● 参考解析
本题暂无解析
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