Java - Language Fundamentals - Practice Questions

Question 1

Which keyword is used to define a class in Java?

Accepted Answer

Question 2

Which keyword is used for inheritance in Java?

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Question 3

Which data type is used to store a single character in Java?

Accepted Answer

Question 4

What is the size of the int data type in Java?

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Question 5

Which class is commonly used to take input from the keyboard?

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Question 6

Which of the following is a valid main method declaration?

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Question 7

Which is a reserved word in the Java programming language?

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Question 8

Which package is automatically imported in every Java program?

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Question 9

public interface Foo 
{ 
    int k = 4; /* Line 3 */
}

Which three piece of codes are equivalent to line 3?

    final int k = 4;
    public int k = 4;
    static int k = 4;
    abstract int k = 4;
    volatile int k = 4;
    protected int k = 4;

Accepted Answer

Question 10

Which is the valid declarations within an interface definition?

Accepted Answer