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Java LanguageExceptions and exception handling


Objects of type Throwable and its subtypes can be sent up the stack with the throw keyword and caught with try…catch statements.


  • void someMethod() throws SomeException { } //method declaration, forces method callers to catch if SomeException is a checked exception type

  • try {

    someMethod(); //code that might throw an exception 


  • catch (SomeException e) {

     System.out.println("SomeException was thrown!"); //code that will run if certain exception (SomeException) is thrown


  • finally {

     //code that will always run, whether try block finishes or not