Que- Which of these class object can be used to form a dynamic array?
a. ArrayList
b. Map
c. Vector
d. ArrayList & Vector
Answer- ArrayList & Vector
Que- Which of these are legacy classes?
a. Stack
b. Hashtable
c. Vector
d. All of the mentioned
Answer- All of the mentioned
Que- Which of these is the interface of legacy?
a. Map
b. Enumeration
c. HashMap
d. Hashtable
Answer- Enumeration
Que- What is the name of a data member of class Vector which is used to store a number of elements in the vector?
a. length
b. elements
c. elementCount
d. capacity
Answer- elementCount
Que- Which of these methods is used to add elements in vector at specific location?
a. add()
b. set()
c. AddElement()
d. addElement()
Answer- addElement()
Que- Which of these class object uses the key to store value?
a. Dictionary
b. Map
c. Hashtable
d. All of the mentioned
Answer- All of the mentioned
Que- Which of these method is used to insert value and its key?
a. put()
b. set()
c. insertElement()
d. addElement()
Answer- put()
Que- Which of these is the interface of legacy is implemented by Hashtable and Dictionary classes?
a. Map
b. Enumeration
c. HashMap
d. Hashtable
Answer- Map
Que- Which of these is a class which uses String as a key to store the value in object?
a. Array
b. ArrayList
c. Dictionary
d. Properties
Answer- Properties
Que- Which of these methods is used to retrieve the elements in properties object at specific location?
a. get()
b. Elementat()
c. ElementAt()
d. getProperty()
Answer- getProperty()
Que- Which of these class object has an architecture similar to that of array?
a. Bitset
b. Map
c. Hashtable
d. All of the mentioned
Answer- Bitset
Que- Which of these method is used to make a bit zero specified by the index?
a. put()
b. set()
c. remove()
d. clear()
Answer- clear()
Que- Which of these method is used to calculate number of bits required to hold the BitSet object?
a. size()
b. length()
c. indexes()
d. numberofBits()
Answer- length()
Que- Which of these is a method of class Date which is used to search whether object contains a date before the specified date?
a. after()
b. contains()
c. before()
d. compareTo()
Answer- before()
Que- Which of these methods is used to retrieve elements in BitSet object at specific location?
a. get()
b. Elementat()
c. ElementAt()
d. getProperty()
Answer- get()
Que- What is Remote method invocation (RMI)?
a. RMI allows us to invoke a method of java object that executes on another machine
b. RMI allows us to invoke a method of java object that executes on another Thread in multithreaded programming
c. RMI allows us to invoke a method of java object that executes parallely in same machine
d. None of the mentioned
Answer- RMI allows us to invoke a method of java object that executes on another machine
Que- Which of these package is used for remote method invocation?
a. java.applet
b. java.rmi
c. java.lang.rmi
d. java.lang.reflect
Answer- java.rmi
Que- Which of these methods are member of Remote class?
a. checkIP()
b. addLocation()
c. AddServer()
d. None of the mentioned
Answer- None of the mentioned
Que- Which of these Exceptions is thrown by remote method?
a. RemoteException
b. InputOutputException
c. RemoteAccessException
d. RemoteInputOutputException
Answer- RemoteException
Que- Which of these class is used for creating a client for a server-client operations?
a. serverClientjava
b. Client.java
c. AddClient.java
d. ServerClient.java
Answer- AddClient.java
Que- Which of these package is used for all the text related modifications?
a. java.text
b. java.awt
c. java.lang.text
d. java.text.modify
Answer- java.text
Que- Which of these packages contain all the collection classes?
a. java.lang
b. java.util
c. java.net
d. java.awt
Answer- java.util