"misplaced construct(s)" in Java code near a catch

I could not compile the following code in Java, error is: misplaced construct(s). What's wrong?

public class ExceptionsTutorial {

    public static void main(String[] argv) throws Exception{

        try{
            System.out.println("A");

            try{
                System.out.println("B");
                throw new Exception("1");
            }
      开发者_StackOverflow      catch{
                System.out.println("C");
                throw new Exception("2");
            }
            finally{
                System.out.println("D");
                throw new Exception("3");
            }

        }
        finally{
            System.out.println("F");
        }

    }
}

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catch must declare what exception it catches:

catch (Exception E) {
 System.out.println("C");
 throw new Exception("2");
}

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Read up on Java catch blocks. There is a required element that is missing in your code.

Note that Java's behavior is slightly different from that of C# or Python in this regard.