易搜题 > 资格证大类 > 计算机编程 > 问题详情
问题详情

1. import java.io.*;  2. public class Foo implements Serializable {  3. public int x, y;  4. public Foo( int x, int y) { this.x = x; this.y = y; }  5.  6. private void writeObject( ObjectOutputStream s)  7. throws IOException {  8. s.writeInt(x); s.writeInt(y)  9. }  10.  11. private void readObject( ObjectInputStream s)  12. throws IOException, ClassNotFoundException {  13.  14. // insert code here  15.  16. }  17. }  Which code, inserted at line 14, will allow this class to correctly serialize and deserialize?() 

A、 s.defaultReadObject();

B、 this = s.defaultReadObject();

C、 y = s.readInt(); x = s.readInt();

D、 x = s.readInt(); y = s.readInt();

未找到的试题在搜索页框底部可快速提交,在会员中心"提交的题"查看可解决状态。 收藏该题
查看答案

相关问题推荐

  • TCP/IP在多个层次引入了安全机制,其中TLS协议位于(44)。

    A.数据链路层

    B.网络层

    C.传输层

    D.应用层

  • int index = 1;   String test = new String;   String foo = test[index];  What is the result?()

    A、 Foo has the value “”

    B、 Foo has the value null

    C、 An exception is thrown

    D、 The code will not compile

  • Which two are true?()

    A

     An encapsulated, public class promotes re-use.

    B

     Classes that share the same interface are always tightly encapsulated.

    C

     An encapsulated class allows subclasses to overload methods, but does NOT allow overriding methods.

    D

     An encapsulated class allows a programmer to change an implementation without affecting outside code.

  • public class Test {  public static void main(String[] args) {  String str = NULL;  System.out.println(str);  }  }   What is the result?()  

    A、 NULL

    B、 Compilation fails.

    C、 The code runs with no output.

    D、 An exception is thrown at runtime.

  • 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?()  

    A、 ABCD

    B、 Compilation fails.

    C、 C is printed before exiting with an error message.

    D、 BC is printed before exiting with an error message.

    E、 BCD is printed before exiting with an error message.

联系客服 会员中心
TOP