נושאים מתקדמים בתכנות- עדכני

Explanation: ObjectInputStream class extends the InputStream class and implements the ObjectInput interface.

Explanation: oos.writeInt(5); writes integer 5 in the Output stream which is extracted by z = ois.readInt(); and stored in z hence z contains 5.

Explanation: x = ois.readInt(); will try to read an integer value from the stream ‘serial’ created before, since stream contains an object of Myclass hence error will occur and it will be catched by catch printing deserialization.

Explanation: New input stream is linked to steal ‘serials’, an object ‘ois’ of ObjectInputStream is used to access this newly created stream, ois.close(); closes the stream hence we can’t access the stream and ois.available() returns 0.

Explanation: oos.writeFloat(3.5); writes 3.5 in output stream. A new input stream is linked to stream ‘serials’, an object ‘ois’ of ObjectInputStream is used to access this newly created stream, ois.available() gives the total number of byte in the input stream since a float was written in the stream thus the stream contains 4 byte, hence 4 is returned and printed.

Explanation: First, it will print “Success” and besides that it will write “Welcome to Sanfoundry” to the file sanfoundry.txt.

Explanation: By calling sleep() within main(), with long enough delay to ensure that all child threads terminate prior to the main thread.

Explanation: The isAlive( ) method returns true if the thread upon which it is called is still running. It returns false otherwise.