The use of exception handling mechanism _finally in Java

Finally summary:

Finally code block: Defines code that must be executed

Typically used to close resources or some code that must be executed

Example 1:finally function Demo

classFushuexceptionextendsexception{fushuexception (String m) {Super(m); }}classDemo { Public intDivintXintYthrowsfushuexception {if(y<0)        {            Throw NewFushuexception ("Divisor is negative"); }        returnx/y; }}classexceptiondemo1{ Public Static voidMain (String args[]) {Demo d=NewDemo (); Try        {            intX=d.div (4,-1); System.out.println ("X=" +x); }        Catch(fushuexception e) {System.out.println (e.tostring ()); }        finally{System.out.println ("Finally");//Finally, the code that is bound to be executed} System.out.println ("Over"); }}

Operation Result:

Fushuexception: Divisor is negative
Finally
Over

Example 2:

1 classFushuexceptionextendsException2 {3 fushuexception (String m)4     {5         Super(m);6     }7 }8 9 Ten classDemo One { A      Public intDivintXintYthrowsfushuexception -     { -         if(y<0) the         { -             Throw NewFushuexception ("Divisor is negative"); -         } -         returnx/y; +     } - } +  A  at classExceptionDemo1 - { -      Public Static voidMain (String args[]) -     { -Demo d=NewDemo (); -         Try in         { -             intX=d.div (4,-1); toSystem.out.println ("x=" +x); +         } -         Catch(fushuexception e) the         { * System.out.println (e.tostring ()); $             return;Panax Notoginseng         } -         finally the         { +System.out.println ("finally");//Finally, the code that is bound to be executed A         } theSystem.out.println ("Over"); +     } -}

Operation Result:

Fushuexception: Divisor is negative
Finally

The use of exception handling mechanism _finally in Java