What value will the expression UserNames(1) return for the array UserNames = { "John", "Jane", "Dave", "Sandra"}?

What value will the expression UserNames(1) return for the array UserNames = { "John", "Jane", "Dave", "Sandra"}?

• A. "John"
• B. "Jane"
• C. "Dave"
• D. "Sandra"

Answer: (B)

To understand the expression UserNames(1) and what it returns, it's important to know how indexing works in programming arrays, specifically in languages that use zero-based indexing. In zero-based indexing, the first element of an array is accessed with the index 0, the second element with index 1, and so on. In this case, the array UserNames is defined as: - Index 0: "John" - Index 1: "Jane" - Index 2: "Dave" - Index 3: "Sandra" When the expression UserNames(1) is evaluated, it accesses the element at index 1 of the UserNames array, which is "Jane". Therefore, the value returned is "Jane". Understanding zero-based indexing is crucial here, as it clarifies why "Jane" is associated with index 1 in this array.

To understand the expression UserNames(1) and what it returns, it's important to know how indexing works in programming arrays, specifically in languages that use zero-based indexing. In zero-based indexing, the first element of an array is accessed with the index 0, the second element with index 1, and so on.

In this case, the array UserNames is defined as:

• Index 0: "John"

• Index 1: "Jane"

• Index 2: "Dave"

• Index 3: "Sandra"

When the expression UserNames(1) is evaluated, it accesses the element at index 1 of the UserNames array, which is "Jane". Therefore, the value returned is "Jane". Understanding zero-based indexing is crucial here, as it clarifies why "Jane" is associated with index 1 in this array.