Quiz on Arrays in Java

Special symbols used to declare an array in Java is :

• Braces { }

• Parentheses ()

• Square Brackets [ ]

• Angled Brackets < >

The special symbols used to initialize an array at the time of the declaration itself is :

• Parentheses ( )

• Square Brackets [ ]

• Braces { }

• Angled Brackets < >

We can skip initializing some elements of the array during Shorthand Initialization. (TRUE / FALSE)

• FALSE

• TRUE

We can declare an array without initialization and without mentioning the size. (TRUE / FALSE)

• TRUE

• FALSE

Default value of an element of Object type array is :

• 0

• null

• -1

• Garbage value

Default value of byte, short, int or long data type elements of an array in Java.

• -1

• 1

• 0

• Garbage value

Identify the default value of float or double data type elements of an array in Java

• 0

• 0.0

• 1

• 1.0

What will be the default value of a char data type elements of an array in Java?

• ‘A’

• ‘\0’

• null

• ‘\0’ or null

How do we describe an array in the best way?

• The Array shows a hierarchical structure.

• Arrays are immutable.

• Container that stores the elements of similar types

• The Array is not a data structure

Choose the correct way of declaring an array :

• int javatpoint[10];

• int javatpoint;

• javatpoint{20};

• array javatpoint[10];