场(厂)内专用机动车辆装卸货物时重心越高,对()稳定性不利。
查看答案
Which code fragments will succeed in printing the last argument given on the command line to the standard output, and exit gracefully with no output if no arguments are given?() CODE FRAGMENT a: public static void main(String args[]) { if (args.length != 0) System.out.println(args[args.length-1]); } CODE FRAGMENT b: public static void main(String args[]) { try { System.out.println(args[args.length]); } catch (ArrayIndexOutOfBoundsException e) {} } CODE FRAGMENT c: public static void main(String args[]) { int ix = args.length; String last = args[ix]; if (ix != 0) System.out.println(last); } CODE FRAGMENT d: public static void main(String args[]) { int ix = args.length-1; if (ix > 0) System.out.println(args[ix]); } CODE FRAGMENT e: public static void main(String args[]) { try { System.out.println(args[args.length-1]); }catch (NullPointerException e) {} }
A. Code fragment a.
B. Code fragment b.
Code fragment c.
D. Code fragment d.
E. Code fragment e.
再生旋风器二级料腿应伸至()。
A. 再生器密相床层
B. 再生器密相
C. 再生器稀相
D. 再生器底部
我国公民担任检察官必须年满()
A. 18周岁
B. 20周岁
C. 23周岁
D. 25周岁