JDK支持的字符集
public static void main(String[] args) {
SortedMap<String, Charset> mm = Charset.availableCharsets();
Set<String> set = mm.keySet();
Iterator<String> it = set.iterator();
while (it.hasNext()) {
System.out.println("JDK支持的字符集为:" + it.next());
}
int size = Charset.availableCharsets().size();
System.out.println("====================================");
System.out.println("JDK支持的字符集的个数==" + size);
System.out.println("平台默认的字符集为:" + Charset.defaultCharset());
}