Which two are valid array declaration?

The correct answer is A. Object array[]; C. int[] array. In Java, arrays can be declared by placing square brackets either after the type name or after the variable name.

Creating and Using Arrays

Question

Options

AObject array[];
BBoolean array[3];
Cint[] array;
DFloat[2] array;

How the community answered

(55 responses)

A
93% (51)
B
2% (1)
D
5% (3)

Why each option

In Java, arrays can be declared by placing square brackets either after the type name or after the variable name.

AObject array[];Correct

The syntax `Object array[];` is a valid way to declare an array in Java, where the square brackets are placed after the variable name.

BBoolean array[3];

Array size cannot be specified during declaration; it must be provided during initialization using the `new` keyword.

Cint[] array;Correct

The syntax `int[] array;` is the most common and preferred way to declare an array in Java, with the square brackets placed after the type name.

DFloat[2] array;

Similar to option B, array size cannot be specified within the square brackets during the declaration phase.

Concept tested: Java array declaration syntax

Source: https://docs.oracle.com/javase/tutorial/java/nutsandbolts/arrays.html

Topics

#array declaration#array syntax

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