Which code fragments will succeed in initializing a two-dime

题目
多选题
Which code fragments will succeed in initializing a two-dimensional array named tab with a size that will cause the expression tab[3][2] to access a valid element?()   CODE FRAGMENT a:  int[][] tab = {  { 0, 0, 0 },  { 0, 0, 0 }  };   CODE FRAGMENT b:  int tab[][] = new int[4][];  for (int i=0; i   CODE FRAGMENT c:  int tab[][] = {  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0  };   CODE FRAGMENT d:  int tab[3][2];   CODE FRAGMENT e:  int[] tab[] = { {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0} };
A

Code fragment a.

B

Code fragment b.

C

Code fragment c.

D

Code fragment d.

E

Code fragment e.

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相似问题和答案

第1题:

Which of the following tools should be used to analyze the placement of file fragments on a mirrored logical volume?()

  • A、 df
  • B、 lslv
  • C、 filemon
  • D、 fileplace

正确答案:D

第2题:

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.
  • C、Code fragment c.
  • D、Code fragment d.
  • E、Code fragment e.

正确答案:A

第3题:

Given that: Gadget has-a Sprocket and Gadget has-a Spring and Gadget is-a Widget and Widget has-a Sprocket Which two code fragments represent these relationships? ()

A.

B.

C.

D.

E.

F.


参考答案:A, C

第4题:

多选题
10.publicclassBar{ 11.staticvoidfoo(int...x){ 12.//insertcodehere 13.} 14.} Which two code fragments,inserted independently at line1 2,will allow the class to compile()
A

foreach(x)System.out.println(z);

B

for(intz:x)System.out.println(z);

C

while(x.hasNext())System.out.println(x.next());

D

for(inti=0;i


正确答案: B,C
解析: 暂无解析

第5题:

Which two code fragments will execute the method doStuff() in a separate thread?()

  • A、new Thread() {public void run() { doStuff(); }};
  • B、new Thread() {public void start() { doStuff(); }};
  • C、new Thread() {public void start() { doStuff(); }}.run();
  • D、new Thread() {public void run() { doStuff(); }}.start();
  • E、new Thread(new Runnable() {public void run() { doStuff(); }}).start();

正确答案:D,E

第6题:

The 8859-1 character code for the uppercase letter A is 65. Which of these code fragments declare and initialize a variable of type char with this value?()  

  • A、char ch = 65;
  • B、char ch = ’¥65’;
  • C、char ch = ’¥0041’;
  • D、char ch = ’A’;
  • E、char ch = "A";

正确答案:A,D

第7题:

Which code fragments will succeed in initializing a two-dimensional array named tab with a size that will cause the expression tab[3][2] to access a valid element?()   CODE FRAGMENT a:  int[][] tab = {  { 0, 0, 0 },  { 0, 0, 0 }  };   CODE FRAGMENT b:  int tab[][] = new int[4][];  for (int i=0; i   CODE FRAGMENT c:  int tab[][] = {  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0  };   CODE FRAGMENT d:  int tab[3][2];   CODE FRAGMENT e:  int[] tab[] = { {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0} };  

  • A、Code fragment a.
  • B、Code fragment b.
  • C、Code fragment c.
  • D、Code fragment d.
  • E、Code fragment e.

正确答案:B,E

第8题:

Given: 3.public class MyTagHandler extends TagSupport { 4.public int doStartTag() { 5.// insert code here 6.// return an int 7.} 8.// more code here ... 18.} There is a single attribute foo in the session scope. Which three code fragments,inserted independently atline 5,return the value of the attribute?()

  • A、Object o = pageContext.getAttribute("foo");
  • B、Object o = pageContext.findAttribute("foo");
  • C、Object o = pageContext.getAttribute("foo",PageContext.SESSION_SCOPE);
  • D、HttpSession s = pageContext.getSession();Object o = s.getAttribute("foo");

正确答案:B,C,D

第9题:

单选题
Which of the following tools should be used to report in-depth information about file fragments?()
A

 defragfs

B

 istat

C

 filemon

D

 fileplace


正确答案: D
解析: 暂无解析

第10题:

单选题
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.

C

Code fragment c.

D

Code fragment d.

E

Code fragment e.


正确答案: C
解析: 暂无解析

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