ClassTestException1.publicclassTestExceptionextendsException{2.}Classa：1.publicclassa{2.3.publicStringsayHello（Stringname）throwsTestException{4.5.if（name==null）{6.thrownewTestException（）；7.}8.9.returnHello+name；10.}11.12.}Aprogrammerwantstousethiscodeinanapplication：45.Aa=newA（）；46.System.out.println（a.sayHello（”John”））；Whichtwoaretrue？（）
A.Classawillnotcompile.
B.Line46canthrowtheuncheckedexceptionTestException.
C.Line45canthrowtheuncheckedexceptionTestException.
D.Line46willcompileiftheenclosingmethodthrowsaTestException.
E.Line46willcompileifenclosedinatryblock，whereTestExceptioniscaught.

A.publicclassTestExceptionextendsException{2.}Classa：1.publicclassa{2.3.publicStringsayHello（Stringname）throwsTestException{4.5.if（name==null）{6.thrownewTestException（）；7.}8.9.returnHello+name；10.}11.12.}Aprogrammerwantstousethiscodeinanapplication：45.Aa=newA（）；46.System.out.println（a.sayHello（”John”））；Whichtwoaretrue？（）
A.Classawillnotcompile.
B.Line46canthrowtheuncheckedexceptionTestException.
C.Line45canthrowtheuncheckedexceptionTestException.
D.Line46willcompileiftheenclosingmethodthrowsaTestException.
E.Line46willcompileifenclosedinatryblock，whereTestExceptioniscaught.

【参考答案】

D, E