1
12
21
2
第1题:
class Number { public static void main(String [] args) { try { System.out.print(Integer.parseInt("forty ")); } catch (RuntimeException r) { System.out.print("runtime "); } catch (NumberFormatException e) { System.out.print("number "); } } } 结果是什么?()
第2题:
static void test() { try { String x=null; System.out.print(x.toString() +“ “); } finally { System.out.print(“finally “); } } public static void main(String[] args) { try { test(); } catch (Exception ex) { System.out.print(”exception “); } } What is the result?()
第3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4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5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6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7题:
4
34
43
14
第8题:
null
finally
null finally
Compilation fails.
finally exception
第9题:
inner outer
middle outer
inner middle outer
.编译失败
第10题:
forty
number
runtime
编译失败
第11题:
in pre
pre in
in pre post
pre in post
第12题:
AC
BD
ACD
ABCD
Compilation fails.
第13题:
public class X { public static void main(String [] args) { try { badMethod(); System.out.print(“A”); } catch (Exception ex) { System.out.print(“C”); } finally { System.out.print(“B”); } System.out.print(“D”); } public static void badMethod() { throw new Error(); } } What is the result?()
第14题:
public class TestApp{ public static void main(String[] args){ try{ String myname = null; if(myname.length()>2) System.out.print(“1”); }catch(NullPointerException e){ System.out.print(“2”); } } } 上述程序运行后的输出是哪项?()
第15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16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17题:
public class TestApp{ public static void main(String[] args){ try{ int i = 0; int j = 1 / i; String myname=null; if(myname.length()>2) System.out.print(“1”); }catch(NullPointerException e){ System.out.print(“2”); } catch(Exception e){ System.out.print(“3”); } } } 上述程序运行后的输出是哪项?()
第18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19题:
BD
BCD
BDE
BCDE
ABCDE
Compilation fails.
第20题:
test
Exception
Compilation fails.
NullPointerException
第21题:
3
2
231
32
第22题:
AB
BC
ABC
BCD
Compilation fails.
第23题:
inner
inner outer
middle outer
inner middle outer