<?xml version="1.0" encoding="utf-8"?>
<resources>
<plurals name="numberOfSongsAvailable">
<item quantity="one">One song found.</item>
<item quantity="other">%d songs found.</item>
</plurals>
</resources>


int count = getNumberOfsongsAvailable();
Resources res = getResources();
String songsFound = res.getQuantityString(R.plurals.numberOfSongsAvailable, count);

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<string name="welcome_messages">Hello, %1$s! You have %2$d new messages.</string>
Resources res = getResources();
String text = String.format(res.getString(R.string.welcome_messages), username, mailCount);

<resources>
<string name="welcome_messages">Hello, %1$s! You have &lt;b>%2$d new messages&lt;/b>.</string>
</resources>
AND