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Java data types online quiz test

Java interview questions on data types 

Data types: As we discussed when a variable is declared some part of memory is reserved. But how much memory will
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Java variables online quiz test

Java interview questions on variables

Variable:  

Variable is the name of reserved memory location. It means when we declare a variable some part of memory is

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Java array online quiz test

Java interview questions on array

Java arrays are group of homogeneous elements. Homogeneous means - of the same kind i.e. Java arrays contains the elements of same

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Java OOPs online quiz test

Java interview questions on oops

  OOPs principles are as follows:

Abstraction.

Encapsulation.

Polymorphism.

Inheritance.

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JVM online quiz test

Java interview questions on jvm

JVM (Java Virtual Machine):

JVM is a virtual machine or a program that provides run-time environment in which java byte code can

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Java constructor online quiz test

Java interview question on constructor

Constructor:

Constructor is a special member of a class which is used to initialize the state of an object. It provides the

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Java garbage collection online quiz test

Java interview questions on garbage collection

Garbage collection:

Garbage collection is a process which is performed for memory management. It is used for reclaiming the runtime unused

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Java method overriding online quiz test

Java interview questions on method overriding and object class

If a subclass provides a method with the same signature (name and parameter) as in its super class,

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Java inheritance online quiz test

Java interview questions on inheritance

Interface in java:

Interface is a way of implementing 100% abstraction. An interface is declared with interface keyword. It can contain only

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