Java Refresher Quiz

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Test your Java basics.

Created by

Lokesh A

India

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Java Refresher QuizOnline version Test your Java basics. by Lokesh A 1 Which is a valid Java variable name? a 1myVar b myVar c My Var d my-Var 2 Which data type can hold true/false values? a char b double c boolean d int 3 What is printed by the code: if (x>5) { System.out.println("A"); } else { System.out.println("B"); } with x = 10? a A b Nothing c B d Error 4 Which loop runs at least once regardless of the condition? a for b while c do-while d foreach 5 Which is a correct method signature for a public method returning int with no parameters? a int public get() {} b public void get() {} c public int get(int a) {} d public int get() {} 6 Where is a local variable accessible? a Across methods b In the file c Inside the method where it is declared d In the entire class 7 What does i++ do in Java? a No change to the value b Increments after the value is used c Increments before the value is used d Decrements the value 8 Which operator is used for the ternary conditional expression? a ? b :: c @ d : 9 Which keyword is used to return a value from a method? a return b break c exit d continue 10 Which operator concatenates strings in Java? a & b * c - d +

Java Refresher QuizOnline version

Test your Java basics.

by Lokesh A

Which is a valid Java variable name?

1myVar

myVar

My Var

my-Var

Which data type can hold true/false values?

char

double

boolean

int

What is printed by the code: if (x>5) { System.out.println("A"); } else { System.out.println("B"); } with x = 10?

Nothing

Error

Which loop runs at least once regardless of the condition?

for

while

do-while

foreach

Which is a correct method signature for a public method returning int with no parameters?

int public get() {}

public void get() {}

public int get(int a) {}

public int get() {}

Where is a local variable accessible?

Across methods

In the file

Inside the method where it is declared

In the entire class

What does i++ do in Java?

No change to the value

Increments after the value is used

Increments before the value is used

Decrements the value

Which operator is used for the ternary conditional expression?

Which keyword is used to return a value from a method?

return

break

exit

continue

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Java Refresher Quiz

Quiz

About this activity

Created by

Download the paper version to play

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Java Refresher QuizOnline version

by Lokesh A

Which is a valid Java variable name?

Which data type can hold true/false values?

What is printed by the code: if (x>5) { System.out.println("A"); } else { System.out.println("B"); } with x = 10?

Which loop runs at least once regardless of the condition?

Which is a correct method signature for a public method returning int with no parameters?

Where is a local variable accessible?

What does i++ do in Java?

Which operator is used for the ternary conditional expression?

Which keyword is used to return a value from a method?

Which operator concatenates strings in Java?

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