Overall, something that works fine for some test, sandbox use, but not a generic and elegant way in my humble opinion. The common solution to a problem like this is to wrap the switch statement in a do.while loop.
#Switch case java rerun code
This indeed basically works, but this answer that does not convince me for several reasons :ġ) What about VM and program arguments ? (this one is secondary in fact, because can be solve it quite easily).Ģ) What if the main is not a jar (which is usually the case when launching from an IDE) ?ģ) Most of all, what about the cleaning of the closing application ? For example if the application save some properties when closing, commit some stuffs etc.Ĥ) We need to change the command line in the code source every time we change a parameter, the name of the jar, etc. Some look and feel also require to relaunch the application to be properly applied.Ī quick Google search give plenty answers using a simple : Runtime.getRuntime().exec("java -jar myApp.jar") It is especially useful when changing the language of a GUI application, so that we need to restart it to reload the internationalized messages in the new language. There are switch statements and switch expressions they have different properties (yielding a value, exhaustiveness, etc. >, where only the code to the right of the label is going to be executed if the label is matched.The code to the right of a case. SebastianS I think framing '-> style switch statements' as a 'feature' in their own right is already on the wrong track it is a combination of features that you can select or not. Jika proses perbandingan tersebut menghasilkan true, maka block kode program akan di proses. In particular, the new Java introduces the following: A new form of the switch label case. Kondisi SWITCH CASE adalah percabangan kode program dimana kita membandingkan isi sebuah variabel dengan beberapa nilai. Today I'll talk about a famous problem : restarting a Java application. Java 14 extends switch so it can be used as either a statement or an expression.
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