1. IADCS Diploma Course Exception Handling U Nyein Oo COO/Director(IT) Myanma Computer Co., Ltd

5. Structure of Exception Object Error Throwable Exception (LinkageError, ThreadDeath, VirtualMachineError) ClassNotFoundException IOException(EOF,FileNotFound) NoSuchFieldException NoSuchMethodException RuntimeException (Arithemetic,IllegalArgument, IndexOutOfBounds,NullPointer)

6. Structure of Exception(Cont:) Object Throwable Error Exception Runtime Exception uncheck check uncheck

13. Example of catch and throw model //Number Format Exception Example class Try_Example{ public static void main(String args[]){ try{ int n=Integer.parseInt(args[0]); System.out.println("N is "+n); } catch(Exception e){ System.out.println("E is "+e); } } }

14. Example(cont) //Arithemetic Exception Example class Try_Example{ public static void main(String args[]){ int demo=0; try{ System.out.println(20/demo); } catch(Exception e){ System.out.println("E is "+e); } } }

20. Example of Finally Block //Finally Block Example class Finally_Example{ public static void main(String args[]){ int demo=0; try{ System.out.println(20/demo); } catch(Exception e){ System.out.println("E is "+e); } finally{ System.out.println("Finally Executed"); } } }

24. User Defined Exception Example public class ExTest{ public static void main(String args[]){ int num=Integer.parseInt(args[0]); try{ if(num<0) throw new MyExceptionTest(); } catch(MyExceptionTest e) { System.out.println(e); } } } public class MyExceptionTest extends ArithmeticException{ MyExceptionTest(){ super(&quot;You have passed Illegal Operation&quot;); } }

25. Multi catch example public class Pre { public static void main (String argv[]) { try { double d = Double.valueOf(argv[0]).doubleValue(); System.out.println (d); } catch (ArrayIndexOutOfBoundsException e) { System.out.println (&quot;An argument is required.&quot;); return; } catch (NumberFormatException e) { System.out.println (&quot;The argument must be a real number.&quot;); return; } } }

27. Thank You!