A try-catch-finally sentence problem for Java exception capture

Today, learning the try-catch-finally statement, originally felt quite simple, easy to understand. Searched for a related type of question. As a result confidence was poured in the basin cold water. Mark the question first and go out to get some air.

1  Public classTestEx {2     Private intC;3 4      PublicTestEx () {5     }6 7@SuppressWarnings ("Finally")8     BooleanTestEx ()throwsException {9         BooleanRET =true;Ten         Try { OneRET =testEx1 (); A}Catch(Exception e) { -System.out.println ("testEx, catch Exception"); -RET =false; the             Throwe; -}finally { -System.out.println ("testEx, finally; return value= "+ret); -             returnret; +         } -     } +  A@SuppressWarnings ("Finally") at     BooleanTESTEX1 ()throwsException { -         BooleanRET =true; -         Try { -RET =testEx2 (); -             if(!ret) { -                 return false; in             } -System.out.println ("testEx1, at the end of Try"); to             returnret; +}Catch(Exception e) { -System.out.println ("testEx1, catch Exception"); theRET =false; *             Throwe; $}finally {Panax NotoginsengSystem.out.println ("testEx1, finally; return value= "+ret); -             returnret; the         } +     } A  the@SuppressWarnings ("Finally") +     BooleanTESTEX2 ()throwsException { -         BooleanRET =true; $         Try { $             intb = 12; -              for(inti = 2; I >=-2; i--) { -SETC (b/i); theSystem.out.println ("i=" +i); -             }Wuyi             return true; the}Catch(Exception e) { -System.out.println ("testEx2, catch Exception"); WuRET =false; -             Throwe; About}finally { $System.out.println ("testEx2, finally; return value= "+ret); -             returnret; -         } -     } A  +      Public Static voidMain (string[] args) { theTestEx TestException1 =NewTestEx (); -         Try { $ Testexception1.testex (); the}Catch(Exception e) { the e.printstacktrace (); the         } the     } -  in      Public intGetC () { the         returnC; the     } About  the      Public voidSETC (intc) { the          This. C =C; the     } +}

Output:

After reading it, I was thinking,

1.Java exception handling mechanism, do I really understand?

2.Java exception handling, do I really have the control?

How do I handle return in a 3.catch body?

What do you do with return in a 4.finally body?

5. What happens when a return is encountered in the catch and finally body?

6. Is there a system.exit ()? What do you do when you meet it??

7. Just know that throws is not the perfect strategy, but also to continue to understand AH. 2017-06-1918:21:08

A try-catch-finally sentence problem for Java exception capture