Java Static Essentials

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Quiz on the static keyword in Java

Créé par

Nitin Pawar

India

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Froggy Jumps Java Static EssentialsVersion en ligne Quiz on the static keyword in Java par Nitin Pawar 1 What does the static keyword mean in Java? a Belongs to each object b Belongs to the class, not instances c Must be final 2 How do you access a static variable from outside the class? a Using ClassName.variable b Using objectName.variable c Using this.variable 3 Can a static method access non-static members directly? a Yes, it can b Only private members c No, it cannot access instance members without an object 4 What is a static initializer block used for? a Initialize static variables when the class loads b Define the main method c Create instances at runtime 5 Which of these is true about static methods? a They cannot be overloaded b They require an object to call c They can be called without an object 6 Can a static variable be final? a No, static cannot be final b Only if private c Yes, it can be a static final constant 7 Do static blocks execute before main()? a Only in child classes b No, after main c Yes, when the class is loaded 8 What happens if you declare a static method that overrides a superclass method? a It overrides the superclass method b Compilation error c It hides, not override, the superclass method 9 Can static members be accessed from a static context via this or super? a No, use class name b Yes, using this c Yes, using super 10 Which scenario benefits most from static members? a Utility functions or constants shared across instances b Per-object state tracking c Instance-specific behavior

Froggy Jumps

Java Static EssentialsVersion en ligne

Quiz on the static keyword in Java

par Nitin Pawar

What does the static keyword mean in Java?

Belongs to each object

Belongs to the class, not instances

Must be final

How do you access a static variable from outside the class?

Using ClassName.variable

Using objectName.variable

Using this.variable

Can a static method access non-static members directly?

Yes, it can

Only private members

No, it cannot access instance members without an object

What is a static initializer block used for?

Initialize static variables when the class loads

Define the main method

Create instances at runtime

Which of these is true about static methods?

They cannot be overloaded

They require an object to call

They can be called without an object

Can a static variable be final?

No, static cannot be final

Only if private

Yes, it can be a static final constant

Do static blocks execute before main()?

Only in child classes

No, after main

Yes, when the class is loaded

What happens if you declare a static method that overrides a superclass method?

It overrides the superclass method

Compilation error

It hides, not override, the superclass method

Can static members be accessed from a static context via this or super?

No, use class name

Yes, using this

Yes, using super

Which scenario benefits most from static members?

Utility functions or constants shared across instances

Per-object state tracking

Instance-specific behavior

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Java Static Essentials

Froggy Jumps

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Java Static EssentialsVersion en ligne

par Nitin Pawar

What does the static keyword mean in Java?

How do you access a static variable from outside the class?

Can a static method access non-static members directly?

What is a static initializer block used for?

Which of these is true about static methods?

Can a static variable be final?

Do static blocks execute before main()?

What happens if you declare a static method that overrides a superclass method?

Can static members be accessed from a static context via this or super?

Which scenario benefits most from static members?

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