The difference between Java 19-7 throw and throws

1 /*2 Throw: If there is an exception, we can throw the exception, this time the exception should be thrown object. 3 4  　 the difference between throws and throw (interview question)5  　　 throws6 used after the method declaration, followed by the exception class name7 can be separated by a comma with multiple exception class names8 represents a thrown exception that is handled by the caller of the method9 throws represents a possibility of an exception that does not necessarily occurTen  　　 Throw One used in the body of a method, followed by the name of the exception object A only one exception object name can be thrown - represents a thrown exception, handled by a statement in the method body - Throw throws an exception, and execution throws must throw some kind of exception. the      -  Exception Handling principle : If the function can be handled internally, with a try, if not handled, referred to the caller, which is used throws - difference: - subsequent programs need to continue to run on the try + subsequent programs do not need to continue to run throws - Example: + If you have a cold, just take some medicine for yourself, try . A after a few days of medicine did not have a good result of the throws, then we have to go to the hospital at If the hospital doesn't have a cure, it becomes an error. -  -  */ -  Public classExceptiondemo { -      Public Static voidMain (string[] args) { -         //method (); in          -         Try { to method2 (); +}Catch(Exception e) { - e.printstacktrace (); the         } *     } $ Panax Notoginseng      Public Static voidmethod () { -         intA = 10; the         intb = 0; +         if(b = = 0) { A             Throw Newarithmeticexception (); the}Else { +System.out.println (A/b); -         } $     } $  -      Public Static voidMETHOD2 ()throwsException { -         intA = 10; the         intb = 0; -         if(b = = 0) {Wuyi             Throw NewException (); the}Else { -System.out.println (A/b); Wu         } -     } About}

The difference between Java 19-7 throw and throws