why does this code show an error

ishween2k

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 class A {

 public void process() { System.out.print(”A,”); } }

class B extends A {

 public void process() throws IOException {

 super.process();

 System.out.print(”B,”);

 throw new IOException();

 } }

class C{

 public static void main(String[] args) {

 try { new B().process(); }

 catch (IOException e) { System.out.println(”Exception”); } }

}

Markus

It'd be much more helpful of you to give the error text.

JosAH

Quote:

Originally Posted by ishween2k

class A {

Expand|Select|Wrap|Line Numbers

  public void process() { System.out.print(”A,”); } }

class B extends A {

 public void process() throws IOException {

 super.process();

 System.out.print(”B,”);

 throw new IOException();

 } }

class C{

 public static void main(String[] args) {

 try { new B().process(); }

 catch (IOException e) { System.out.println(”Exception”); } }

}

Those double quotes are incorrect; you probably used Microsoft Word or something to type that in, don't do that. A second error is your widening of the throws clause for method 'process' in class B. Look up the Liskov Substitution principle and you'll see.

kind regards,

Jos (ex-moderator)

why does this code show an error

re: why does this code show an error

re: why does this code show an error

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