Which statement about array elements in Java is correct?

In Java, arrays are a data structure that stores a fixed-size sequence of elements. One of the fundamental characteristics of an array in Java is that all its elements must be of the same type. This type consistency allows the array to be managed efficiently in memory, ensuring that operations like indexing can be performed without ambiguity.

When an array is declared, the type of the elements contained within it is specified. For example, you might declare an array of integers using the syntax int[] numbers = new int[10];, which means that numbers can only store integers. If you try to store a value of a different type, such as a string or a double, the Java compiler will produce an error at compile time. This type-safety feature of arrays helps to avoid runtime errors and ensures that operations on array elements are predictable and manageable.

Therefore, the requirement for array elements to be of the same type ensures that arrays operate in a consistent and type-safe manner, making them a crucial part of the Java programming language.