Here are a few title options, aiming for a clear and concise question format: **Short and Direct:** * **How to Send an Integer Array Between Activities with Intent.putExtra()?** * **Why Does Intent

Intent.putExtra: Passing Arrays Between Activities

Question:

How can you send an array of integers between activities using Intent.putExtra()?

Problem:

An attempt to retrieve an array sent with Intent.putExtra() results in a single int value of '0' instead of the expected array values.

Answer:

The issue is in the retrieval of the array. You are calling getInt() on the extras bundle, which expects a single int value. To get the array correctly, you need to use getIntArray():

<code class="java">int[] arrayB = extras.getIntArray("numbers");</code>

Explanation:

When you put an array into the intent using putExtra(), it is stored as an array of ints. The getInt() method attempts to retrieve a single int, so it returns the first element of the array, which is '0' in this case. The getIntArray() method, on the other hand, retrieves the entire array of ints as intended.

By using getIntArray(), you can successfully retrieve the array and access its values in the receiving activity.

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