多项选择题
Which three concerning the use of the java.io.Serializable interface are true？（）
A. Objects from classes that use aggregation cannot be serialized.
B. Art object serialized on one JVM can be successfully deserialized on a different JVM.
C. The values in fields with the volatile modifier will NOT survive serialization anddeserialization.
D. The values in fields with the transient modifier will NOT survive serialization anddeserialization.
E. It is legal to serialize an object of a type that has a supertype that does NOT implement java.io.Serializable.
相关考题
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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？（）
A. s.defaultReadObject（）；
B. this = s.defaultReadObject（）；
C. y = s.readInt（）； x = s.readInt（）；
D. x = s.readInt（）； y = s.readInt（）； -
单项选择题
import java.io.*； public class Forest implements Serializable { private Tree tree = new Tree（）； public static void main（String [] args） { Forest f= new Forest（）； try { FileOutputStream fs = new FileOutputStream（”Forest.ser”）； ObjectOutputStream os = new ObjectOutputStream（fs）； os.writeObject（f）； os.close（）； } catch （Exception ex） { ex.printStackTrace（）； } } } class Tree { } What is the result？（）
A. Compilation fails.
B. An exception is thrown at runtime.
C. An instance of Forest is serialized.
D. A instance of Forest and an instance of Tree are both serialized. -
单项选择题
Whencomparingjava.io.BufferedWritertojava.io.FileWriter，whichcapabilityexistsasamethodinonlyoneofthetwo？（）
A. closing the stream
B. flushing the stream
C. writing to the stream
D. marking a location in the stream
E. writing a line separator to the stream
