class A extends Exception{ A(){ super(); } A(String msg){ super(msg); } } class B extends A{ B(){ super(); } B(String msg){ super(msg); } } public class Test{ public static void main(String[] args){ try{ throw new B(); }catch(A e){ System.out.println("A"); }catch(B e){//编译挂了知道不?异常中发生多态时一定要注意要将父类的异常写在下边! System.out.println("B"); }catch(Exception e){ System.out.println("Exception"); } } }
java中异常注意的细节2
时间: 2024-11-05 12:25:22