static void test() throws RuntimeException { try { System.out.print(”test “); throw new RuntimeException(); } catch (Exception ex) { System.out.print(”exception “); } } public static void main(String[] args) { try { test(); } catch (RuntimeException ex) { System.out.print(”runtime “); } System.out.print(”end “); } What is the result?()
第1题:
class ThreadExcept implements Runnable { public void run() { throw new RuntimeException("exception "); } public static void main(String [] args) { new Thread(new ThreadExcept()).start(); try { int x = Integer.parseInt(args[0]); Thread.sleep(x); System.out.print("main "); } catch (Exception e) { } } } 和命令行: java ThreadExcept 1000 哪一个是结果?()
第2题:
public static void main(String[] args) { try { args=null; args[0] = “test”; System.out.println(args[0]); } catch (Exception ex) { System.out.println(”Exception”); } catch (NullPointerException npe) { System.out.println(”NullPointerException”); } } What is the result?()
第3题:
11.classA { 12. public void process() { System.out.print(”A “); } } 13. class B extends A { 14. public void process() throws RuntimeException { 15. super.process(); 16. if (true) throw new RuntimeException(); 17. System.out.print(“B”); }} 18. public static void main(String[] args) { 19. try { ((A)new B()).process(); } 20. catch (Exception e) { System.out.print(”Exception “); } 21. } What is the result?()
第4题:
public class X { public static void main(String [] args) { try { badMethod(); System.out.print(“A”); } catch (Exception ex) { System.out.print(“B”); } finally { System.out.print(“C”); } System.out.print(“D”); } public static void badMethod() { throw new RuntimeException(); } } What is the result? ()
第5题:
static void test() throws Error { if (true) throw new AssertionError(); System.out.print(”test “); } public static void main(String[] args) { try { test(); } catch (Exception ex) { System.out.print(”exception “); } System.out.print(”elld “); } What is the result?()
第6题:
class Birds { public static void main(String [] args) { try { throw new Exception(); } catch (Exception e) { try { throw new Exception(); } catch (Exception e2) { System.out.print("inner "); } System.out.print("middle "); } System.out.print("outer "); } } 结果为:()
第7题:
null
finally
null finally
Compilation fails.
finally exception
第8题:
test
Exception
Compilation fails.
NullPointerException
第9题:
test end
Compilation fails.
test runtime end
test exception end
A Throwable is thrown by main at runtime.
第10题:
AB
BC
ABC
BCD
Compilation fails.
第11题:
finally
exception finished
finally exception finished
Compilation fails.
第12题:
main
编译失败
代码运行,但没有输出
main java.lang.RuntimeException: exception
第13题:
public class X { public static void main(String [] args) { try { badMethod(); System.out.print(“A”); } catch (Exception ex) { System.out.print(“B”); } finally { System.out.print(“C”); } System.out.print(“D”); } public static void badMethod() {} } What is the result?()
第14题:
现有: class Flow { public static void main(String [] args) try { System. out .print ("before") ; doRiskyThing ( ) ; System.out.print ("after ") ; } catch (Exception fe) { System.out.print ("catch") ; } System. out .println ( " done") ; } public static void doRiskyThing() throws Exception{ // this code returns unless it throws an Exception }} 可能会产生哪两项结果 ?()
第15题:
public class X { public static void main(String [] args) { try { badMethod(); System.out.print(“A”); } catch (RuntimeException ex) { System.out.print(“B”); } catch (Exception ex1) { System.out.print(“C”); } finally { System.out.print(“D”); } System.out.print(“E”); } public static void badMethod() { throw new RuntimeException(); } } What is the result?()
第16题:
class Flow { public static void main(String [] args) { try { System.out.print("before "); doRiskyThing(); System.out.print("after "); } catch (Exception fe) { System.out.print("catch "); } System.out.println("done "); } public static void doRiskyThing() throws Exception { // this code returns unless it throws an Exception } } 可能会产生下面哪两项结果?()
第17题:
现有: class Birds { public static void main (String [] args) { try { throw new Exception () ; } catch (Exception e) { try { throw new Exception () ; } catch (Exception e2) { System.out.print ("inner "); } System. out.print ( "middle" ) ; } System.out.print ("outer") ; } } 结果是()
第18题:
BD
BCD
BDE
BCDE
ABCDE
Compilation fails.
第19题:
main
编译失败
main java.lang.RuntimeException: exception
代码运行,但没有输出
第20题:
inner outer
middle outer
inner middle outer
.编译失败
第21题:
error1:10.5
error2
error1:10.5error2
以上都不对
第22题:
in pre
pre in
in pre post
pre in post
第23题:
AC
BD
ACD
ABCD
Compilation fails.