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Can you define variables in interface in java?

Anonymous

∙ 11y ago

Updated: 8/11/2023

yes we can define a variable in an interface in java.

Wiki User

∙ 11y ago

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Q: Can you define variables in interface in java?

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Can you instantiate an interface?

According to a beginner's book on Java, an interface can't have constructors. Also, the interface itself can't contain the method implementation.

Why can not define private and protected modifiers for variables in interface?

No. Interface variables are supposed to be public static final. Interfaces, like abstract classes, cannot be instantiated, so all variables in an interface must be static final ones. They are public because usually interfaces are used throughout an application, and this will ensure versatility.

What are the differences between C and Java reference variables?

Java does not have the concept of Reference Variables. We cannot access the memory location where the data is stored in Java.

What java interface must be implemented by all threads?

Runnable interface

How we can get address of variables in Java as pointer variables in C?

At any given point of time you cann't get the address of a variables of java program. This is meant for security purpose only.

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Related Questions

Can you instantiate an interface?

According to a beginner's book on Java, an interface can't have constructors. Also, the interface itself can't contain the method implementation.

Why can not define private and protected modifiers for variables in interface?

No. Interface variables are supposed to be public static final. Interfaces, like abstract classes, cannot be instantiated, so all variables in an interface must be static final ones. They are public because usually interfaces are used throughout an application, and this will ensure versatility.

Can you create a constructor for an interface in java?

NO, we cannot create a contructor for an interface in java.

What is intrface in java?

interface is a list of methods which implements that interface

What is a tagging interface type?

A tagging interface type in Java is an interface that has not defined methods such as the java.io.Serializable interface.

What are the differences between C and Java reference variables?

Java does not have the concept of Reference Variables. We cannot access the memory location where the data is stored in Java.

What java interface must be implemented by all threads?

Runnable interface

Can you create an empty interface with no definitions?

Yes. This is a valid interface definition in Java: interface Useless {}

Does java consider the variables Hello and hello to be different variables?

no

What do mean by interface in java?

An interface in Java is like an abstract class, but there are no method bodies allowed in it and it has to be declared with the interface keyword. It is Java's way of getting around the Deadly Diamond of Death. Only abstract methods and constants are allowed in it.

Why there are no global variables in java?

Global variables are globally accessible. Java does not support globally accessible variables due to following reasons:The global variables breaks the referential transparencyGlobal variables creates collisions in namespac

What is interface in java?

Interface is collection of abstract methods which has only declaration and no implementation

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