Hi all, In the code given below, If I compile I get the C:\Java\bin>javac Test.java Test.java:24: Exception MyException must be caught, or it must be declared in the throws clause of this method. tc.m1(); ^ 1 error As the error says the "Exception MyException must be 'caught' or declared in throws clause", I have the catch in the try block to catch the exception, Why does it still gives an error. ? But if I code the throws clause in the main method it does'nt give the Error. Can anyone explain. ? class MyException extends Exception {} public class Test { public static void main(String[ ] args) { Test tc = new Test(); try { tc.m1(); } catch (MyException e) { tc.m1(); } finally { tc.m2(); } } public void m1() throws MyException { throw new MyException(); } public void m2() throws RuntimeException { throw new NullPointerException(); } } Thx in advance. Aruna
kishen uchil
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Joined: Aug 21, 2000
Posts: 14
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hi there. this is the code that u specified class MyException extends Exception {} public class Test { public static void main(String[ ] args) { Test tc = new Test(); try { tc.m1(); } catch (MyException e) { tc.m1(); } finally { tc.m2(); } } public void m1() throws MyException { throw new MyException(); } public void m2() throws RuntimeException { throw new NullPointerException(); } }
actually myfriend what is happening is that u are catching the exception int try block and that works fine.but an exception again arises in your catch block(tc.m1) and this exception is not bieng caught.if u put a try catch block like this inside the catch block it compiles fine: catch (MyException e) { try{ tc.m1(); } catch(MyException a) { } } you can either do this or u can specify a throws clause along with the main method. hope this helps. p.s:RuntimeException and all its sub classes are unchecked exceptions and they donot need to be caught .