it throws me error incompatible types: unexpected return value -- return 10; please correct it make note where i am doing wrong code?

//return rule break

class Fianalblck { public static void main(String... s) { //int show int x; { try { return 10; } catch(Exception e) { } finally { return 20; } } System.out.println(x); } } 

4 Answers

void means the method cannot return any value. if you wish to quit the application with exit code you can use System.exit().

 public static void main(String[] args) { System.exit(10); } 

refer Can a main method in Java return something?

Your main method is void meaning it can't return anything. If you wish to return a value, create another method that is a returnable type (boolean, int, double, String, etc.) then call that method from your main.

It looks like you need to start from the beginning, here is a link to a java basics tutorial.

Here is a tutorial on return.

I guess this is what you want to do:

class Fianalblck { private int func() { try { return 10; } catch(Exception e) { } finally { return 20; } } public static void main(String... s) { Fianalblck f = new Fianalblck(); int x; x = f.func(); System.out.println(x); } } 

You want to try whether 10 or 20 will be returned from a method.

In java, you have to declare a new method, and call that method with the instance of Fianalblck.

Main method cannot return a value directly.

 Error: Main method must return a value of type void in class first, please define the main method as: public static void main(String[] args) 

But you can simply use return in a main method.

public static void main(String[] args){ ... ... ... return; }