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import java.nio.charset.Charset;
import java.util.Iterator;
import java.util.Set;
import java.util.SortedMap;
public class Main {
static public void main(String args[]) throws Exception {
SortedMap charsets = Charset.availableCharsets();
Set names = charsets.keySet();
for (Iterator e = names.iterator(); e.hasNext();) {
String name = (String) e.next();
Charset charset = (Charset) charsets.get(name);
System.out.println(charset);
Set aliases = charset.aliases();
for (Iterator ee = aliases.iterator(); ee.hasNext();) {
System.out.println(" " + ee.next());
}
}
}
}
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