相关考题

单项选择题 Assuming that the serializeBanana() and the deserializeBanana() methods will correctly use Java serialization and given:  import java.io.*;  class Food implemertts Serializable {int good = 3;}  class Fruit externds Food {int juice = 5;}  public class Banana extends Fruit {  int yellow = 4;  public static void main(String [] args) {  Banana b = new Banana(); Banana b2 = new Banana();  b.serializeBanana(b); // assume correct serialization  b2 = b.deserializeBanana(); // assume correct  System.out.println(”restore “+b2.yellow+ b2.juice+b2.good);  }  // more Banana methods go here  }  What is the result?()

多项选择题 Whichthreeconcerningtheuseofthejava.io.Serializableinterfacearetrue?()

单项选择题 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?()