异常处理,新手求解?
路人_Y 2015-08-22 10:10:52
下列代码编译和运行的结果是:()。
public class A {
public void process() {
System.out.print("A,");
}
public static void main(String[] args) {
try {
new B().process();
} catch (IOException e) {
System.out.println("Exception");
}
}
}
class B extends A {
public void process() throws IOException {
super.process();
System.out.print("B,");
throw new IOException();
}
}
A.输出Exception
B.输出A,B,Exception
C.编译失败
D.在运行时抛出NullPointerException异常
正确答案:为什么是C?