The first is can correct operation code


And I want to join the year of birth calculation code
Use an int to define


There is an error code, a warning



Then there is this error, do not know where to modify,

Hope that the bosses can give directions,

Thank you!!!!!!!!!!

CodePudding user response:

Change the ide although vs can develop the Java,...

CodePudding user response:

The IDEA is not sweet?

CodePudding user response:

In eclipse, relatively stable

CodePudding user response:

Not a code problem, before I write python in vs sometimes will also puzzling error, may be a configuration problem,

CodePudding user response:

You this problem, the problem of not a program, your JVM is not successfully started yet, let alone the code, also never to run code,
In an IDE for development, or, to download a good Java development plug-in,
What thing, start the debugger will be an error, it is drunk,
If it is a MAC or Linux system, you can check whether permissions problems lead to debug port is not open,
My opinion is, or is similar to you upstairs, change the IDE, what all solved,