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android - Intent and Bundle Relation

While using Intent object we can put different types of data directly using its putExtra(). We can also put these extra data into a Bundle object and add it to Intent. So why do we need Bundle if we can do so using Intent directly?

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As you can see, the Intent internally stores it in a Bundle.

public Intent putExtra(String name, String value) {
    if (mExtras == null) {
        mExtras = new Bundle();
    }
    mExtras.putString(name, value);
    return this;
}

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