In Java, which three are legal array declarations among the following?

Introduction / Context:Java supports several syntactic styles for array declarations, including placing brackets after the type or after the variable name. Some C-like forms are illegal in Java.

Given Data / Assumptions:

• Candidates: (1) int [] myScores []; (2) char [] myChars; (3) int [6] myScores; (4) Dog myDogs []; (5) Dog myDogs [7];
• Dog is assumed to be a class type.

Concept / Approach:Legal forms: type[] var; or type var[];. Multi-dimensional (jagged) arrays can be declared like int[] a[];. Illegal forms include specifying the size in the declaration without an initializer on the left-hand side (C-style).

Step-by-Step Solution:

Verification / Alternative check:Try compiling each; (3) and (5) fail with syntax errors.

Why Other Options Are Wrong:Any set including (3) or (5) is invalid.

Common Pitfalls:Transferring C/C++ array syntax to Java; mixing declaration and allocation incorrectly.

Final Answer:1, 2, 4