Some Java programmers want to test their knowledge on the nitty gritties of
Java while others just want to prepare for an upcoming interview. This online
Java mock test is a good combination of questions for all level of Java
programmers. The mock test set consists of 30 Java questions with some sample
questions to help you begin with the test.
Online Practice
Test > Java Mock Test
Here are few sample Java mock test questions
DataInputStream is an example of
Output stream
I/O stream
Filtered stream
File stream
Functions of the dot(.) operator
It enables you to access instance variables of any objects within a class
It enables you to store values in instance variables of an object
It is used to call object methods
It is to create a new object
a,b and c
Which of the following are true?
The Serializable interface is used to identify objects that may be written to
an output stream.
The Externalizable interface is implemented by classes that control the way in
which their objects are serialized.
The Serializable interface extends the Externalizable interface.
a and b
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